Angainor, Chain of Ages

At the beginning of each upkeep, tap target
creature. It does not untap until its controller's
next untap step
{4}{w},{t}: Exile all tapped creatures. You gain 1
life for each creature exiled this way.
"There was Melkor doomed to abide for three ages
long, before his cause should be tried anew, or he
should plead again for pardon."