General advice
1. Build your starter. It will be your early game nuker and campain farmer. it should be your first 6 starred champion. It will carry you through most game content for early-mid game. It will carry you through early dungeons, early-mid arena, campain, early-mid faction wars and early clan boss.
2. Save your shards. During early game, and even late-end game for ftp, aincent,void, and sacred shards are a rare resource. Only pull them if you are 1, close or at mercy or 2, there is a 2x event or a garenteed leggo event that you have shards for.
3. Hit clan boss. Build your clan boss team ASAP. When you get to nightmare/ultra nightmare you can get sacred shards and legendary tomes. Also the immortal and cruel artifacts are insanely helpful for early to mid game, sometimes used right up to end game.
4. Never use your legendarys or epics as food. Food is a term you use for the worthless champion you use to level up or rank up other champions. Even if you dont need them yet or have horrible ratings, save them. After all, you never know if they will get a buff later on. Besides, you can use them for faction wars early-mid game or as faction gaurdians.
5. Hit the arena. Although it is not as effective as clan boss for shard drops you can still get great artifacts from there. Divine crit rate and divine speed are some of the best ones you can get. Besides, there is still a chance to get a shard each week.
6. Make sure your leveling and using the right gear. The gear you use will define wether or not you'll land a crit, heal an injured ally before the enemy kills it, move faster and nuke your enemies. First make sure if the gear is compatible with your champion. You don't want a Atk% chestplate on a defence based nuker. Make sure to level the gear you need, after all, don't waste 100k silver upgrading a 1 star common chestplate, save the silver for a 5 star epic chestplate. Also, unless you got great stats there is not much of a need to get artifact set boosts early game.
7. Use your gems wisely. This one is especially for ftp players. You only get a small amount of gems at the start and its very hard to get more. The 3 shard aincent pack seems tempting but don't buy it. Make sure to upgrade the gem mine for it is the ONLY reliable source of constant gems. The advantages really start to add up when you get it maxed. Even at first level it will get you quite a bit of gems.
8. Join the right clan. Your stage in the game and playstyle will define the clan you want to join. If you don't have great champions and just finished the tutorial or did not build a good clan boss team, find a clan that kills easy and normal clan boss. If your an advanced player and is confident in getting nightmare and ultra nightmare chests find a clan that kills those tiers. If your a competitve and active player that wants to win every cvc, find a clan with cvc requirements. that way you know how much points you will earn at minimum each cvc. If your a easy-going, casual player, find a clan with little to no requirments and is still active and hits the right clan boss for you.
9. Never waste your tomes. Rare tomes go with rare champions, Epic ones go with epic champions, legendary tomes go with legendarys. Tomes along with shards and gems are some of the rarest resources in the game. Make sure to use them on champions you will definitely use later on.
10. Have fun. Although this game is competitive and multiplayer, sometimes you will forget that this is just a game. no need to be stressed. Its something to help you relax, and have fun, not to stress over and cry over. Have fun is the most important tip i can give you. Just have fun.
Dungeon advice
1. Spider dungeon. The spider dungeon is one of the toughest dungeons in the game. You should be prepared before diving in. Champions like armiger that can decrease turn meter are crucial during the later stages of the dungeon. Since the boss is immune to all types of heal reduction, you need to make sure it does not get a turn to even heal in the first place. AOE hp burn champions are also great, the spiderlings are faster then the main boss so once they take a turn, the hp burn on them will damage all enemies helping out a lot. Also if you feel the poisions from the spiderling start to hurt, make sure you stun the spiderlings or control their turn meter as well.
2. Dragon dungeon. The dragon dungeon is an important dungeon for most of us for it drops important gear like speed and accuracy. To beat this dungeon you need 1 AOE nuker for the waves can get pretty tough later on. You also need someone tht can AOE remove debuffs like reliquary tender. The dragon has a secret skill scorch that you need to be careful of. Scorch will stun all your champions. However the skill will be disabled if you deal enough damage to the dragon so make sure you bring some poisions with you and someone that can place decrease defence.
3. Ice golem dungeon. The ice golem dungeon is another tough to beat dungeon. the ice golem will try to AOE freeze your champions when it takes enough damage and the chance depends on how many of the ice golems guards are still alive. It will also revive the guards. Make sure to take out the guards before attacking the ice golem. Champions that can place lots of poisions will be extreamly helpful to make the ice golem take enough damage to go through multiple checkpoints. If you only take the ice golems checkpoints down one by one it will try to freeze your allies for each checkpoint however if you take multiple out at once, it will only attack once. Champions that can block revive is also very helpful.
4. Minotuar dungeon. Minotuar dungeon is not the hardest dungeon but you can still lose in it if your not careful. The minotuar dungeon will allow you to grind scrolls for masteries unlike the others. The minotuar boss has a special unique buff and defuff. They can not be removed or be changed. The buff will allow the minotuar to deal 400% more damage while the debuff will allow the minotuar to take 200% more damage. the debuff will last for 1 turn while the buff lasts for 3. The debuff will be recieved after the buff expires. You don't really need much to take this dungeon down, all you need to really do is save your powerful nuke skill for when the minotuar recieves the debuff.
5. Fire knight dungeon. The fire knight dungeon the arguably one of the toughest dungeons in the game. It has a sheild that will be placed at the start of each turn which reduces the damage taken by 80% and will always block debuffs while its up. It also heals the fire knight. If the sheild is up at beginning of the bosses turn, it will do a AOE attack. It is very much advised to bring multi-hitting champions and turn meter manipulators as well as heal reduction placers. Some of the best ones are coldheart and armiger.
6. Arcane keep. The arcane keep is not really that hard of a dungeon, you only need to keep buffs on your champions and you'll have a pretty easy time in there.
7. Void keep. The void keep is rather hard if you dont know how to counter it. You need champions to either AOE remove debuffs or place block debuffs on them for the void boss will place poisions on your champions and can trigger poision explode.
8. Spirit keep. The spirit keep is rather annoying because the boss will heal itself by 50% of its max hp each turn(20% for stages 1-6) and deals damage based on its current hp. It is advised to bring heal reduction champions to the battle.
9. Force keep. This keep is also an annoying one because of the bosses insane 4000 defence. The boss can also place decrease attack. It is advised to bring champions that can ignore defence or place decrease defence. Also you need a champion to AOE remove debuffs.
10. Magic keep. This keep is not the hardest one to beat but watch out for the bosses major shield, it is advised to bring champions that can either steal shields or remove them entirely. it is better to steal the sheild because it is usually worth thousands of hp. Ignore shield champions are not the worst either.