66/38 = 1,73 point per energy

720 * 1,73 = 1250 points a day without using any brews and only working with 1*s

@Ksthecrow that was for training event my friends. On training tournament there are no point for leveling on campaign. Point only count when leveling or upgrading rank on tavern. 

If you wanna talk about about training event here is my strategy :

Leveling up normally. 

always leveling 1-2 star champion 1x on brutal 12-6 before using them as rank upgraded food

always leveling 3 star champion 2x on brutal 12-6 before using them as rank upgraded food

always leveling 4 star champion 3x on brutal 12-6 before using them as rank upgraded food

always leveling 4 star champion 4x on brutal 12-6 before using them as rank upgraded food

Used 24 energy to leveling 3  1star champion to max. Used 8 energy to leveling 3 1star champion before using them as rank upgraded food.

With 32 energy we will get 9x3 point + 5x3 point for rank upgraded + 5x3 point for leveling 3 1star champion before using them as upgraded food.

Which is means per 32 energy i get 57 point. 57 / 32 = 1,78 energy efficiency

Back to main topic 

Books system rally need a renovation .  something like 

1- reset skill option :  either with gems cost or  getting % of books used  back  . and before that dev making a log system to differentiate skills upgraded with books and using duplicates 

2- book upgrade/downgrade system : as player advance the need for rare is decline till reaching insignificant while he still earn them from        everywhere   so making a use of all those rare books 

The main problem is getting champions is totally random process so no way to strategize book using at !!!   i got  a certain epic and i want to use him he is not the best but still can help me advance . Should i book it ?

1.  wait till you get better one which can be tomorrow or next year so ending with saving book fearing to use any                                         
2.  just do it . if it help you progress.. and next day  you get better one and regret using your hard earned epic books 

So a mechanism to re-use already used books is a necessary . 

I have 53 lvl, and less than 900 points for now. I'm playing this account about 6-8 hours per day. How can I reach 4,5k points? Play 20h per day? 

There is no way to make it except paying or collecting shards and brews for several months, but paying is to expensive and to less is given for it, and collecting is slowing your account progress to almost 0. 

This is a little bit frustrating to sacrifice so much time to play and have no equal rewards for this.

Here is my secret guys...

I up 2* in campaign. 3* too. 

Starting 4*, I feed them 1* in the tavern until lvl 15. 

For 5*, if they are food, I raise them to lvl 15 with food. If not, past lvl15 I raise their xp in campaign until they are around 90% of the lvl and then I feed them 1* in the tavern. 

Do it by groups of 3 and always feed them the same number of food so it's easier to keep tab

Now I didnt say 250 energy. I said 250 gems used to buy energy. That 6 recharge at 40 gems, plus the 2 daily recharge, plus some left and right from event, mission and lvl up to 50. That more than 1400 energy. 

This way I get most of the points without brews and lvled in the tavern. 

Cheers

Edit

How the fuck do I upload a screenshot??????? 

Something I forgot to mention. I switch griding between brutal and normal depending on the xp needed to get close to 100% without passing it. 4 energy for a little less then half I usually get in brutal. 

Edit... Well turns out I might run out of shards. I started with 450, I only have 120 left. I might make it if I pass some epic 5* , but I might not be able if I only grow food. I lack 2* to grow. So I now I have to chose between having 3 or 4 more lvl 50 or risk it all to pass my gorgo 6*. 

Well I made it but the finish line was a pain. I had to up the food from 1* to 2 as I was really lacking shards. Adding that to the troublessome process I choose was very hard. More energy consumption therefore more gems. I still have a day left and I can pass my gorgo 6*, lacking 3 more 5* to pass a second champ 6*...