Great game, easy to play. You just mix two of the same character and see them fight monster.
It have RNG to the character that you can summon just like any auto chess game, which makes it good since you can get angry when not getting the character that you put a lot of money into and get happy when you just luck out and just keep spawning the one you want.
Game also generous, after some time the game will release skins that are from the battle pass to the event and you can get it for free with gems, gems is very easy to get imo you can get 10 gem every 4 successful game, which mean every time you kill the boss. And you can up the difficulty after killing the boss, with max difficulty being 10.
You can also get stuff when completing new difficulty, like gems/energy/exp book to upgrade character/ summon scroll/etc.
The game also have dungeon crawler mode.
If you want to play, do be sure to do the expedition, it'll rotate mode everyday around gold expedition/exp expedition/ and battle pass expedition that's about all i can think of.