Challenge Dungeons to gain resources and grow your Might! Dungeons are not only a good source of resources but also a good way to train troops. Earn a 3-Flame victory in a Dungeon stage to unlock sweep for that stage. Hint: Specially-marked Dungeons have higher Hero Shard drop rates! Tip: Clear the final stage of (Expert)Dungeon 8 to unlock Insane Dungeons. Hero Upgrades are limited by Flame requirements. Complete Dungeon stages to earn Flames! You can purchase Dungeon Entries with Gems. You can gain Hero EXP from Dungeons. Heroes get stronger as they level up. Increase their levels via Dungeons, Raids, & Here Be Monsters.