Clotho, Sister of Fate

Indestructible
Clotho can't attack or block unless you have
3 or more creature cards in your graveyard.
{3}{t}: Put a fate counter on target
non-god creature you control. Fate counters
remain on creatures put into exile from the
battlefield.
Clothos power and toughness are equal to
3 plus the number of creatures you control
with fate counters on them.