After playing a hand or discarding, 1 in 2 chance to draw two extra cards.
Based on a YuGiOh card btw. That card requires you to flip a coin and either you or your opponent draw two cards.
Maybe the downside can be implemented here like:
Whenever cards are drawn from the deck, 1 in 2 chance to draw two more, otherwise draw two less.
(But I think that's shit and nobody would pick this up)
Anyways, thoughts?