Yawgmoth, Thran Physician + Scurry Oak + Leyline of Vitality

Yawgmoth, Thran Physician

Scurry Oak

Leyline of Vitality

How it works

1. Cast Yawgmoth by paying 2.
2. Yawgmoth enters the battlefield, triggering Leyline of Vitality and Scurry Oak's evolve ability.
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 Leyline of Vitality 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. The Squirrel enters the battlefield, triggering Leyline of Vitality and Scurry Oak's evolve ability.
9. Repeat from step 4.