The Great Formless One

Deathtouch, Lifelink
Whenever The Great Formless One enters the battlefield or attacks, put a 1/3 black and green Ooze creature token onto the battlefield.
Whenever another Ooze creature you control dies, put a slime counter on The Great Formless One and loose 3 life. Other Ooze creatures you control get +1/+1 for every slime counter on The Great Formless One.