Become/ Torn

When Become/ Torn enters the battlefield,
you may exile another creature on the battlefield.
If you do, put a creature token that is a
copy of the exiled creature onto the battlefield.
If the exiled creature has a trigger ability upon
entering the battlefield, that effect triggers twice.
The token enters the battlefield with twice as
many +1/+1 equal to the exiled creature's power
and toughness. When Become/ Torns leaves the battlefield, return the exiled creature to it's
owner's hand.