Otholuor, Shifting Ossuary

As long as there are less than eight creatures in
all graveyards, Otholuor is indestructible and
isn't a creature.
Exile a creature from your graveyard: Skeletons
you control gain deathtouch until end of turn.
{b}{b}{b}: Return target Skeleton from your
graveyard to the battlefield.
Otholuor gets +1/+1 for each creature in your graveyard.