Well, we can draw from many sources. Pokemon is an obvious one, as is Yugioh. There's also Magic: The Gathering. There's also
Ateil, which is an online card game with lots of interesting card types.
Such as
Lycanthropes.
They have abilities that can only be used at certain times, which are arranged in stages. The first one, Undying, restores their health. The other stages do various other things.
“She'd become a governess. It was one of the few jobs a known lady could do. And she'd taken to it well. She'd sworn that if she did indeed ever find herself dancing on rooftops with chimney sweeps she'd beat herself to death with her own umbrella.”
― Hogfather