Abra

{3}: Exile another target creature you control,
then return it to the battlefield under its
owner's control.
Whenever another creature enters the
battlefield under your control, you may pay {g/w}. If you do, put a +1/+1 counter on it. If it's a
Unicorn, put two +1/+1 counters on it instead
Emiel the Blessed - Unicorn