Shirvonak

Flying, persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
When Shirvonak enters the battlefield, exile target creature until Shirvonak leaves the battlefield.
Evoke {2}{w} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)