Probably one of the best hero collector/gacha games in the market. So many things to do. Manage your town, manage your dungeon, manage your pve/pvp teams that it's never boring to log on. In most Hero collector games, it gets boring grinding the same stage over and over. Here, you mine your dungeon for resources to upgrade your characters while you do other in game events. There is also the auction house to buy/sell resources. The draw rates are generous.