Yawgmoth, Thran Physician + Scurry Oak + Soul Warden

Yawgmoth, Thran Physician

Scurry Oak

Soul Warden

How it works

1. Cast Yawgmoth by paying 2.
2. When Yawgmoth enters the battlefield, Soul Warden and Scurry Oak's evolve ability trigger.
3. Holding priority, activate Yawgmoth by paying 1 life and sacrificing a creature, putting a -1/-1 counter on Scurry Oak and causing you to draw a card.
4. Resolve the Soul Warden trigger, causing you to gain 1 life.
5. Resolve the Scurry Oak trigger, putting a +1/+1 counter on it, triggering Scurry Oak's second ability.
6. Holding priority, activate Yawgmoth by paying 1 life and sacrificing a creature, putting a -1/-1 counter on Scurry Oak and causing you to draw a card.
7. Resolve the Scurry Oak trigger, creating a 1/1 Squirrel creature token.
8. When the Squirrel enters the battlefield, Soul Warden and Scurry Oak's evolve ability trigger.
9. Repeat from step 4.