Isis, the Maternal Goddess

Indestructible
As long as your devotion to white, blue, red, and
green is less than fifteen, Isis isn't a creature.
Isis, The Maternal Goddess enters the battlefield
with X +1/+1 counters.
Baby creatures and creatures with band counters
on them get +X/+X, where X is Isis' power and
toughness.