I love this game, by far the best card game i have ever played. a few minor issues, 1, the Summoning cards like the demon deity, and other summon cards simply crash the game when you try to use them. 2, editing the decks to be invalid and not fixing it before you try to leave will cause a popup that can't be closed with the touch controls. 3, the conditional cards with indirect effects like demonic decay, apocalypse and demon castle zekial don't give obvious effects, they do as intended, but no effect occurs on screen to indicate successful use. (edited.)
Heads up if you trying to find the hidden boss her battle is super buggy and you probably never beat it cause of 2 bugs she gives you a card that crashes the game two for some reason succubus amd i think demon bugs her battle if you have a full hand of only succubus cards it read null empty hand i think and game crashes