Thanks to the curious for looking, and those that posted for trying to help. 

I was already aware of some of the perceived wisdom surrounding when, and when not, to attack Ubers, or level 5 and 6.

The question was not  about any particular invader,but which level of invaders to attack when you can only attack 1, 2, 3, 4.

To get to troop health/attack on the invader knowledge tree takes a lot of resources,time, boosts or gold, which you have to mass or buy.

I think those, like me, that are not so wealthy, would like to know what to do meanwhile.

Contrary to what appears to be the suggestion elsewhere, of not doing any attacking till you can go for the big guns,Its silly not to use the energy that the game gives you for nothing ,with the possibility of  an added top up, if its warranted on economic grounds.

If you want to go anywhere with your game, max out your invader-knowledge, until you hit troop health/attack. And then kill uber invaders

Thanks that's more in keeping with what I wanted to know.

Definitely useful  information for the free players / low spenders, but as  there's generally enough free energy to kill level 1 invaders, is this a waste, if by adding energy from packs you gain more? 

With  hindsight the title of the post could have been better, because yes, the higher levels of invaders are the most useful.

I will probably test L.3 and L.4 before and after opening L.5, as finishing the invader tree to L.10 will take considerably more time.

At  this point in time I would recommend sticking with level 1's for the f2p or newer players. With "The Hunt Has Just Begun" achievement and the vast amounts of Gold available through that you can buy Hero energy to hit the higher levels for better/higher quality materials.

Its just over year since I wrote the question, so interesting that its  been taken up again recently and read what  players are saying now.

Especially as I would now like to know how to get the best materials from L.5 invaders.

Any offers?

Player J said:

o

Ubers have the best value. 

Why? because Ubers give you gems which are exclusive to them only.

You can't get certain gems from any of the other Regular Invaders.

This is what makes Uber Invaders the Superior Invader.

There is only 2 reasons why a person wouldn't attack an Uber Invader.

1st Reason = To Save Time

Laird Brinni commented a year ago with this to explanation. 

It has to do with a player searching for a specific material. 

Example:

You are trying to craft a piece of gear which requires a Lynx Fur. 

The Lynx Fur material drops from 2 places ----> Gepid Uber Invader or Lynx Invader

If you attack the Gepid Uber Invader, The chances of you getting a Lynx Fur is 1 out of 20. 

If you attack the Lynx Invader, The chances of you getting a Lynx Fur is 1 out of 5. 

Thus, A player may decide to attack a Lynx Invader instead of a Gepid Uber Invader "To Save Time". 

2nd Reason = Unable to attack Ubers due to Oracle Research

You want to attack Ubers, but the game doesn't let you!

You haven't met the requirements to attack the Ubers.

This is another reason why a person wouldn't be able to attack Uber Invaders.

---

Once, you understand what I am saying from above.

You will begin to understand how your new question below is sort of pointless.

ANYONE said:

Its just over year since I wrote the question, so interesting that its  been taken up again recently and read what  players are saying now.

Especially as I would now like to know how to get the best materials from L.5 invaders.

Any offers?

Attacking level 5 Invader can improve your over all quality vs. level 4 Invaders.

Instead of getting a bunch of Green Material Drops, You will begin to get a bunch of Blue Material Drops.

It doesn't change anything else.

The Best Value still is the Ubers.

---

The advice I can offer you is the following:

• Figure out whether or not you are a Free 2 Play Player or a Spending Player.
• Figure out what level your hero is.
• Than based on your hero level ---> Create the Khazar Suit or Royal Guard Suit.

The Khazar Suit is the Best Gear Suit for players who attack invaders with a Hero Level between 35 to 44.

The Royal Guard Suit is the Best Gear Suit for players who attack invaders with a Hero Level 45+.

Thank you for the response I am sure that other players reading it may find it useful.

However, though your opening statement of, 

'The answer to your questions has always been the same'. 'Ubers are the best.' 

may be true, its not really the answer to the question I asked,or intended to ask, as I pointed out later on in the early discussion,I was aware of the merits of attacking Ubers when I wrote the O.P.

So I already knew, and understand what you wrote, and my intended question wasn't pointless,as I wanted to know the most cost efficient from invaders 1-4. 

Also I do not think your two reasons  given for not attacking Ubers holds up.

A specific piece of gear  like Lynx Fur such as describe, is not guaranteed to fall from either the Lynx or Gepid  so the element  of time saving is doubtful.

The game disallowing you to attack Ubers because of oracle research being inadequate is nonsense.

Apart from access to the necessary energy to attack any class of invader,being a free to play or spender, has little to do with the  actual mechanics of the game.

Its certainly true though  that with access to vast quantities of energy there is no need to worry about cost efficiency.

Player J said:

The 2 reasons I gave do hold up!

The Lynx Fur is guaranteed to fall from either the Lynx or Gepid.

This is 100% fact - You can't get Lynx Fur from any other location.

The game has a chart which shows you all the drops given by each invader.

The game has programmed the Lynx Fur to drop from the Lynx Invader or Gepid Uber Invader.

The chance to get a Lynx Fur as a drop material from Lynx is 1 out of 5.

The chance to get a Lynx Fur as a drop material from Gepid Uber invader is 1 out of 20.

 

When I say the chance to get a Lynx Fur from an Lynx Invader is 1 out of 5.

I don't mean if you attack a Lynx Monster 5 times - You will get 1 Lynx Fur.

That isn't what I am saying.

You have to remember the game has other drops in addition.

Gems - Peace Shields - Gold - etc.

Other items are dropping in addition to the Materials which drop from the Invader.

What I am saying is strictly based on material drops itself!

The Lynx Invader only has 5 materials it can drop at any given time.

-Lynx Fur

-Leather Straps

-Oak Handle

-Raw Hide

-Rough Blade

The material drop pool amount is reduced vs. Gepid Uber invader material drop pool amount.

The Gepid Uber invader has 20 different materials which can drop from it.

You can acquire a specific item faster from the Regular invader vs. Uber invader.

This statement I am making is factual because I have tested it myself.

---

I never said only Khazar gear.

Players can mix in Hun gear pieces, but in my experience it isn't necessary.

Here is what you have to understand.

The Royal Guardmen Gear is the Best Invader Gear for improving your Damage + Reducing energy cost vs. Invader.

The problem is you can't wear any of the Royal Guardsmen Gear, until your hero is level 45.

How do you plan to reach level 45 with your hero? You have several options I suppose.

- You could spend money on the game to buy Hero Experience Pack from Bank.

- You could spend money on the game to buy Task Refreshes Pack from Bank. 

- You could spend gold to buy Hero Experience from Items - Treasure.

- You could spend gold to buy Task Refreshes from Items - Bonuses.

- You could spend energy attacking Invaders to level up your hero.

Free 2 Play Players or Low Spending Players may not have a lot of money to spend on Bank Offers.

If you can't spend on Bank Offers, You can't buy Hero Experience Packs or Task Refresh Packs which give Hero Experience.

Free 2 Play Players or Low Spending Players may not want to use Gold on Hero Experience or Task Refreshes.

They might want to conserve there free gold for more important things like upgrading there buildings + research.

So it leaves you with 1 option - Attacking invaders so your hero levels up to level 45.

What gear will you use?

Are you going to attack an invader with no gear on? 

Do you think attacking an invader naked with no gear is good idea?

Obviously, you should wear gear which helps you vs. invaders.

There are only 2 gears types of gear which can help you vs. Invaders below level 44.

1st gear type = Hero Restoration Gear ------> It helps restore energy faster.

2nd gear type = Hero Experience Gear -----> It helps your hero gain more experience to level up faster.

Obviously, I think the gear you should chose is the Hero Experience Gear.

The Khazar Invader drops materials which can help you create Hero Experience Gear.

The Hun Invader drop materials which can help you create Hero Experience Gear.

The Best Hero Experience Gear in the game is the following:

Hun Helmet ----------> Fur Hat 

Hun Armor -----------> Stepped Caftan

Khazar Sword -------> Khazar Bow

Khazar Boots -------> Wanderer Boots 

Hun Amulet ----------> Golden Bracelets

However, It would be stupid for people to do the above set up.

The set up they should do is the  set up I did!

Check out the following set up:

Khazar Helmet -----------------------------------> Plated Helmet

Man Eater or Barbarian Armor ---------------> Bear Coat or Barbarian Armor

Khazar Sword ------------------------------------> Khazar Bow 

Khazar Boots ------------------------------------> Wanderer Boots 

Khazar Amulet ----------------------------------> Inlaid Belts

The Khazar Amulet give 2% less Hero Experience vs. Hun Amulet, but in exchange it gives you so much extra benefit.

---> You get 18% March Speed to travel to the invaders faster.

---> Your hero can be level 35 to wear Khazar Amulet vs. having to be level 40 to wear Hun Amulet.

---> You will need the Khazar Amulets in the future as materials to craft Bjorn Goblet Amulet (Building Speed Amulet)

Clearly, you can see how the trade off is so worth it!

No reason for you to craft the Golden Bracelet.

Notice again how I recommend the Khazar Helmet vs. Hun Helmet

The Khazar Helmet gives you 10% less Hero Experience vs. Hun Helmet, but in exchange look at the benefits.

---> Easy Access - You will be attacking the Khazar Invader tons of times to get materials.

You will need Khazar materials to make Amulets, Boots, Swords!

You will acquire all the materials needed to make the Khazar Helmet in the process!

---> You will need the Khazar Helmet in the future as materials to craft Hermits Boots (Shaman Learning Speed Boots)

Once again, We arrive to the simple conclusion which I said all along.

Players with a hero level 35 to 44 should craft Khazar Gear.

It is the Best Invader Gear for them to use below level 44.

Players with a hero level 45+ should craft Royal Guard Gear.

It is the Best Invader Gear for them to use above level 45.

The Royal Guard gear gives you the most damage per hit.

The Royal Guard gear gives you reduce energy cost when attacking invaders.

BUT YOU HAVE TO BE LEVEL 45.

---

I was able to max out my Invader Research with a hero level 38.

I was able to attack Uber Invaders with a level 38 hero.

I was able to wear 4 gear pieces at level 38.

- 2x Khazar Amulets

- 1x Khazar Shoes

- 1x Man-Eater Armor

When my hero reached level 40, I was able to wear Khazar Helmet.

My hero was gaining double the experience fighting Uber Invaders using this Hero Experience suit.

It helped me reach level 45 so much faster!

When my hero reached level 45, I began swapping my gear.

I swapped from Hero Experience & Hero Restoration gear to Hero Offense & Hero Endurance gear

Hero Offense & Hero Endurance is what the Royal Guardsmen gear gives.

Thanks again for the long explanation, and the results of your experience which will be of use to many players.

I maintain, that my suggestion, that the drop of Lynx gear from either of the invaders suggested is not guaranteed.

Yes these invaders have this item, but it is possible to keep hitting these invaders and get something else or nothing at all, which is why sometimes it takes so long to get the materials needed to make legendary equipment.

Whatever drops is completely random, whatever the odds might be, as for example with tossing a coin, the odds are 50/50,but,it's possible that  you can never get a specific side, because every time the coins flipped, its a new flip, and the coin doesn't know what it did before.

I have been doing a lot of dismantling of dragon rings lately, where you can get either elixir or a diamond back,ideally the stock returned would be balanced  to make it easier to reforge more, but often its not. 

I haven't actually counted  the amount of things that an uber can drop, but it think its considerably more than 20 different items.

As to attacking invaders naked, there is no option to do otherwise until you get enough material to forge some.

It is true to say that there is an element of luck and skill and other gaming factors  that can speed up gathering the hero's experience and gear which will be different for other players.

ANYONE said:

Though my follow up question is still of interest to me.

After this I am pretty much done with your tedious responses.

Your rehearsal, is totally out of synchronisation with what actually happened.

In my opening post,I never meant to ask what was the best of any  invader to attack. I subsequently said I choose a bad title for it . 

The intended question was:

 What is the best invader to attack of levels 1-4.when to switch ,when you have maxed out the invader knowledge as far as L.4

The follow up question, a year later, was prompted by someone posting on this page,otherwise I would have started a new question elsewhere.

When I posted the original question, I already knew all about uber invaders. 

I didn't need  any one else then, or you now, telling me to forget about normal invaders and go for uber invaders instead.

No..

If I ask how to get the best materials from  L.5 that's the question I want answering, not someone answering 'attack ubers instead'.

Here is fruit for thought:

What you meant to ask vs. what you did ask are 2 very different things.

You created a post with a title which said "Invaders which level give the best value."

You created a comment right after which had same follow up question.

3 different people came to your thread answering your question.

Than & only than did you say you made an "Error" You say you meant to say something else.

But it is to late - The reader has already read everything else previously.

From a reader perspective, It just seems as if you are asking a new question.

And that is what my rehearsal demonstrates.

My rehearsal isn't out of sync.

You are the one not looking at the situation at face value.

You are the one not taking responsibility for what you said previously.

You can ignore it all you want, but it doesn't change the perspective from the reader.

Anyway, It doesn't matter.

I think the invaders are the easiest thing in the game to figure out.

Anyone can figure them out pretty fast.

 I said I was done, but you are still wrong.still tedious

Uber isn't a level,  its a type ,it isn't designated a level.

My OP was open to possible interpretation, but it does clearly state, and asks "which level?" and the text talks about level.

Of course  widening of the brief, and going astray of the topic,or doing as you did, and answering the question you wanted to answer , rather than answering the question that was asked,is always a possibility..

Clearly anyone answering a thread ought to read the whole thread and not just respond to the last comment therein.

Again still NO.

Several responded to the O.P. 

Then

In my 2nd post.

I didn't admit to guilt over the title, and it was meant to clarify the O.P. and not ask an additional ,or new question.

It was in my 3rd post where, still admitting no actual guilt that I suggested I might have thought out the title and post in a better manner.

Where as far as  I can see ,there were no additional questions,just additional comments.

Additionally 

When you criticised John over his comment/suggestion about not attacking Uber until invader knowledge was highly progressed,or finished,it was misplaced.

As John would be unaware of your exact circumstances, it was not directed at you personally,except in that: 

Players shouldn't tell others to do what they themselves can do, or did.

This is because the ones you offer the advice to may not have progressed in the same manner,so as often is the case a do 'X' or especially where uber are concerned, 

a blank 'kill uber' is bad advice. 

Given the following information.

Palace 20, and all available invader research finished, except opening up level 5.

Going to palace 21(to open up the rest of the research to level 10) and opening up invaders level 5, will take about the same time.

In the meantime,which level of of invader should I be attacking ?

This was the question over a year ago now.

It has only been revived for two reasons.

1.Someone posted here. 

2.The question has changed a little.

The hero  now has advanced to L 5  and completed invader knowledge to maximum available for palace 20.

So the parameters have changed to now include L.5.

The focus being the invader materials as advantageously as possible.

Thanks.

ANYONE said:

So I did the quick test. 

Sustained attack took me to 365% and killed the invader without me reaching my maximum available %

There isn't going to be great data from just doing one run.

Though it would seem to suggest that you reach a higher damage level,are using less energy per hit, and a lower number of hits, for a much lower total energy consumption, from which I assume you missed  a zero.

Comparing sustained against a combination of sustained and enhanced, the number of hits needed and,the quality of drop didn't seem to improve much,the loot from the kill blow was mainly green, with only one blue item, but as you mentioned,results can vary from one invader to another, so it would take more testing to eliminate the luck of the dice roll.

You will never reach 600% Sustain Attack vs. Regular Invaders.

If you have Royal Guards Gear & Strong Invader Research, you will kill the Regular Invader long before you reach 600% Sustain Attack.

The only time you reach 600% Sustain Attack is against Uber Invaders.

The Uber will generally have 35-45% Health remaining depending on how many times you Critical hit the Uber.

You can then finish the Uber off with an Enhanced Attack.

In order to improve your chances of getting Legendary Drops, It all comes down to Damage.

The more health you can take away from the Invader in 1 hit.

The better the rewards will be.

The Uber invader starts off with 100% health.

The more attacks you do - The more your Sustain Attack rams up.

When the Uber Invader Health gets around 35-45%, You will be at your peek damage.

Your Sustain Attack will have reached its max limit 600%.

You will be doing your maximum Damage to the Uber.

The Majority of your drops will be very good from 45% health to 10% health.

Once, you reach 10% Health on the Uber.

The rewards begin to tapper downward.

It is because the Uber begins to run out of health.

ANYONE said:

Thank you for the response I am sure that other players reading it may find it useful.

However, though your opening statement of, 

'The answer to your questions has always been the same'. 'Ubers are the best.' 

may be true, its not really the answer to the question I asked,or intended to ask, as I pointed out later on in the early discussion,I was aware of the merits of attacking Ubers when I wrote the O.P.

So I already knew, and understand what you wrote, and my intended question wasn't pointless,as I wanted to know the most cost efficient from invaders 1-4. 

Also I do not think your two reasons  given for not attacking Ubers holds up.

A specific piece of gear  like Lynx Fur such as describe, is not guaranteed to fall from either the Lynx or Gepid  so the element  of time saving is doubtful.

The game disallowing you to attack Ubers because of oracle research being inadequate is nonsense.

Apart from access to the necessary energy to attack any class of invader,being a free to play or spender, has little to do with the  actual mechanics of the game.

Its certainly true though  that with access to vast quantities of energy there is no need to worry about cost efficiency.

A full set of only Khazar equipment is not the best set for attacking invaders,below hero L.44, and the switch to Royal Guardsman gear, assuming you have access to either or both ,is a whole new topic. 

The 2 reasons I gave do hold up!

The Lynx Fur is guaranteed to fall from either the Lynx or Gepid.

This is 100% fact - You can't get Lynx Fur from any other location.

The game has a chart which shows you all the drops given by each invader.

The game has programmed the Lynx Fur to drop from the Lynx Invader or Gepid Uber Invader.

The chance to get a Lynx Fur as a drop material from Lynx is 1 out of 5.

The chance to get a Lynx Fur as a drop material from Gepid Uber invader is 1 out of 20.

When I say the chance to get a Lynx Fur from an Lynx Invader is 1 out of 5.

I don't mean if you attack a Lynx Monster 5 times - You will get 1 Lynx Fur.

That isn't what I am saying.

You have to remember the game has other drops in addition.

Gems - Peace Shields - Gold - etc.

Other items are dropping in addition to the Materials which drop from the Invader.

What I am saying is strictly based on material drops itself!

The Lynx Invader only has 5 materials it can drop at any given time.

-Lynx Fur

-Leather Straps

-Oak Handle

-Raw Hide

-Rough Blade

The material drop pool amount is reduced vs. Gepid Uber invader material drop pool amount.

The Gepid Uber invader has 20 different materials which can drop from it.

You can acquire a specific item faster from the Regular invader vs. Uber invader.

This statement I am making is factual because I have tested it myself.

I never said only Khazar gear.

Players can mix in Hun gear pieces, but in my experience it isn't necessary.

Here is what you have to understand.

The Royal Guardmen Gear is the Best Invader Gear for improving your Damage + Reducing energy cost vs. Invader.

The problem is you can't wear any of the Royal Guardsmen Gear, until your hero is level 45.

How do you plan to reach level 45 with your hero? You have several options I suppose.

- You could spend money on the game to buy Hero Experience Pack from Bank.

- You could spend money on the game to buy Task Refreshes Pack from Bank. 

- You could spend gold to buy Hero Experience from Items - Treasure.

- You could spend gold to buy Task Refreshes from Items - Bonuses.

- You could spend energy attacking Invaders to level up your hero.

Free 2 Play Players or Low Spending Players may not have a lot of money to spend on Bank Offers.

If you can't spend on Bank Offers, You can't buy Hero Experience Packs or Task Refresh Packs which give Hero Experience.

Free 2 Play Players or Low Spending Players may not want to use Gold on Hero Experience or Task Refreshes.

They might want to conserve there free gold for more important things like upgrading there buildings + research.

So it leaves you with 1 option - Attacking invaders so your hero levels up to level 45.

What gear will you use?

Are you going to attack an invader with no gear on? 

Do you think attacking an invader naked with no gear is good idea?

Obviously, you should wear gear which helps you vs. invaders.

There are only 2 gears types of gear which can help you vs. Invaders below level 44.

1st gear type = Hero Restoration Gear ------> It helps restore energy faster.

2nd gear type = Hero Experience Gear -----> It helps your hero gain more experience to level up faster.

Obviously, I think the gear you should chose is the Hero Experience Gear.

The Khazar Invader drops materials which can help you create Hero Experience Gear.

The Hun Invader drop materials which can help you create Hero Experience Gear.

The Best Hero Experience Gear in the game is the following:

Hun Helmet ----------> Fur Hat 

Hun Armor -----------> Stepped Caftan

Khazar Sword -------> Khazar Bow

Khazar Boots -------> Wanderer Boots 

Hun Amulet ----------> Golden Bracelets

However, It would be stupid for people to do the above set up.

The set up they should do is the  set up I did!

Check out the following set up:

Khazar Helmet -----------------------------------> Plated Helmet

Man Eater or Barbarian Armor ---------------> Bear Coat or Barbarian Armor

Khazar Sword ------------------------------------> Khazar Bow 

Khazar Boots ------------------------------------> Wanderer Boots 

Khazar Amulet ----------------------------------> Inlaid Belts

The Khazar Amulet give 2% less Hero Experience vs. Hun Amulet, but in exchange it gives you so much extra benefit.

---> You get 18% March Speed to travel to the invaders faster.

---> Your hero can be level 35 to wear Khazar Amulet vs. having to be level 40 to wear Hun Amulet.

---> You will need the Khazar Amulets in the future as materials to craft Bjorn Goblet Amulet (Building Speed Amulet)

Clearly, you can see how the trade off is so worth it!

No reason for you to craft the Golden Bracelet.

Notice again how I recommend the Khazar Helmet vs. Hun Helmet

The Khazar Helmet gives you 10% less Hero Experience vs. Hun Helmet, but in exchange look at the benefits.

---> Easy Access - You will be attacking the Khazar Invader tons of times to get materials.

You will need Khazar materials to make Amulets, Boots, Swords!

You will acquire all the materials needed to make the Khazar Helmet in the process!

---> You will need the Khazar Helmet in the future as materials to craft Hermits Boots (Shaman Learning Speed Boots)

Once again, We arrive to the simple conclusion which I said all along.

Players with a hero level 35 to 44 should craft Khazar Gear.

It is the Best Invader Gear for them to use below level 44.

Players with a hero level 45+ should craft Royal Guard Gear.

It is the Best Invader Gear for them to use above level 45.

The Royal Guard gear gives you the most damage per hit.

The Royal Guard gear gives you reduce energy cost when attacking invaders.

BUT YOU HAVE TO BE LEVEL 45.

I was able to max out my Invader Research with a hero level 38.

I was able to attack Uber Invaders with a level 38 hero.

I was able to wear 4 gear pieces at level 38.

- 2x Khazar Amulets

- 1x Khazar Shoes

- 1x Man-Eater Armor

When my hero reached level 40, I was able to wear Khazar Helmet.

My hero was gaining double the experience fighting Uber Invaders using this Hero Experience suit.

It helped me reach level 45 so much faster!

When my hero reached level 45, I began swapping my gear.

I swapped from Hero Experience & Hero Restoration gear to Hero Offense & Hero Endurance gear

Hero Offense & Hero Endurance is what the Royal Guardsmen gear gives.