Lady Lysa Arryn

When Lysa Arryn enters the battlefield, target creature with power 2 or less gains hexproof.

{2}{g}, Sacrifice a creature: Target opponent discards a card at random. If they discard a noncreature card, they lose 2 life. If they discard a creature card, you lose 2 life. Activate only as a sorcery.

"You told me to put the tears in Jon's wine,
and I did."