Shara,Goddess of the Depths

Indestructible, deathtouch, reach
Shara can not attack or block unless there's ten
or more creatures in all graveyards.
{u}{g}{b}: Put the top three cards of target players library in the graveyard.Create a 2/2 black zombie
token if one or more creatures were placed in a graveyard this way.
{3}{u}{g}{b}:Put target creature from a graveyard
onto the battlefield under your control.