Unnie, Mind Master

Your opponents play with their hands revealed.
Whenever an instant or sorcery you control deals damage to a player, you may exile a card from their hand. Until the end of your next turn, you may play the exiled card.
"After what I did to my father, I swore to never attack the mind again. But for you, witch, I 'll make an exception."
-Unnie, to Witchra