Ovinomancer

Ovinomancer

Creature - Human Wizard | Power/Toughness: 0 / 1 (CMC 3)
When Ovinomancer enters the battlefield, sacrifice it unless you return three basic lands you control to their owner's hand.
, Return Ovinomancer to its owner's hand: Destroy target creature. It can't be regenerated. That creature's controller creates a 0/1 green Sheep creature token.