I didn't notice this in my first beating of the game.But now it seems very annoying thing.You can't use Boss Cards in battles.Correct me if I wrong but I think this is a very problematic.Not in case of the walkthrough but in aquiring and testing everything in the game.I don't know if there are roms without this glitch.Or is this a glitch after all?Maybe this function is unavailable in roms?Please help me to solve this problem.