Empowering Rift

When Empowering Rift enters the battlefield,
exile any number of creatures you control
On each upkeep, put a Time counter
on Empowering Rift
{5}{g} Destroy Empowering Rift,
return all creatures Exiled with Empowering rift
with a +1/+1 counter for each
Time counter on Empowering Rift