Hyena Keeper

Whenever Hyena Keeper enters the battlefield, if {g} was spent to cast it, until end of turn, the top creature card in your graveyard has scavenge {g}. (It has "{g}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to the power of the card you exiled on target creature. Activate this only when you could cast a sorcery.")
Evoke {1}{u}{p/b}{p/r}{p/w} (You may cast this spell for its evoke cost. If you do, it's sacrificed wh