Hel, Goddess of the Dead

Indestructible
As long as your devotion to white, blue, black, and
green is less than ten, Hel isn't a creature.
Flash
When Hel enters the battle field you may pay
{x}{w}{u}{b}{g}, and X creatures gain indestructible
until the end of the turn.
Hel, Goddess of the Dead's power and toughness
are each equal to the number of creatures in the
graveyard.