Guuhrial, Lord of Contracts

Hexproof from White and Green
{5}{b}{b}{t}: Target opponent chooses 3 cards from
their graveyard, then they may pay half their life.
If they do, they put those 3 cards into their hand.
If they don't, the exile all but those 3 from their library.
{5}{u}{u}{t}: Target opponent sacrifices up to 4 permenants they control. If they do, they may
search their library for half the number of sacrificed permenants, rounded down,
reveal them, than put them in their hand.