Sidisi, The Evoker

{b/g}{g/u}{u/b}:Regenerate Sidisi, The Evoker.
You may play creature cards with evoke from your graveyard.
Creature cards in your hand and graveyard have evoke X, where X is equal to it's converted mana cost.
Whenever another non-token creature dies, create a X/X black germ token with "This creature's power and toughness are each equal to the number of creature cards in all graveyards"