Time's Apotheosis

Legacy (When this card is put into your graveyard
from anywhere, exile all other cards from your
graveyard with the same name as this card.)
As long as Time's Apotheosis is in your graveyard,
you can't untap more than one permanent during
your untap step.
Whenever you cast a spell, if Time's Apotheosis
is in your graveyard, you may untap target
permanent.