Emiel the Blessed Foil

Legendary Creature — Unicorn

: Exile another target creature you control, then return it to the battlefield under its owner's control. Whenever another creature you control enters, you may pay . If you do, put a +1/+1 counter on it. If it's a Unicorn, put two +1/+1 counters on it instead. ( can be paid with either or .)