This is a turn based RPG and also a card game. Collect cards and put them into decks, then use those to fight with. The cards you collect are not necessarily more powerful than the ones you already own, but cards become more powerful based on your characters stats which automatically go up when you level up. So you can just stick with a simple attacking and healing deck the whole time if you like, as long as you don't run into enemies with the wrong elemental resistance or status effects. On the other hand you can also be quite strategic because you get to cycle up to two cards for free each turn and then play up to three, so you can dig for situational cards or try to set up tag team moves or combos for your characters. Some of the boss fights are hard