Hyetta, Frenzied Flame Maiden

Faith 4 (This creature enters with 4 Faith counters on it.)

{t} , Discard a card: Exile cards from the top of your
library until you exile a card with the same mana
value as the discarded card. Put that card into your
hand and all other cards exiled this way under the
bottom of your library in a random order. You lose
1 life.