The Prospector

-1: Unless you control Pack Mule or have it in your hand, search your deck for a card named Pack Mule. Then, put it into your hand, and then shuffle.
0: If this card would be killed or destroyed, kill it, and then put it back into the battlefield at the end of your turn with 6 loyalty. Use once.
-4: Destroy all creatures target opponent controls. Then, replace them with 0/3 gold artifact creature tokens with defender. Must have 4 loyalty.