Multiple questions!
- Is it possible to pick the card then initiate it at the end of the turn like in Library of Ruina as your description speaks by itself?
- Is it possible to make exclusive card deck for the said character which cannot be swapped to other characters?
- Is it possible to have multiple attacks in one card?
- Is it possible to have some perks like On Use, On Hit just like in Library of Ruina?
- Is it possible to have enemy using their own card decks as well?