Yawgmoth, Thran Physician + Scurry Oak + Dross Harvester

Yawgmoth, Thran Physician

Scurry Oak

Dross Harvester

How it works

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

This delightful engine uses Yawgmoth, Thran Physician as a sacrifice outlet that feeds on its own activations, paying life to draw cards while neutralizing -1/-1 counters with Scurry Oak's growth. Whenever Scurry Oak receives a +1/+1 counter or triggers its evolve ability, it churns out Squirrel tokens that serve as fresh fodder for Yawgmoth's sacrifice ability. Meanwhile, Dross Harvester acts as your vital life cushion, turning the endless stream of creature deaths into a net gain of life to continually sustain Yawgmoth's life-payment cost.