Yawgmoth, Thran Physician + Scurry Oak + Relic Vial

Yawgmoth, Thran Physician

Scurry Oak

Relic Vial

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, Relic Vial triggers, causing you to gain 1 life and each opponent to lose 1 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, Relic Vial triggers, causing you to gain 1 life and each opponent to lose 1 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 elegant loop turns Scurry Oak into a self-sustaining engine by playing its evolve trigger against Yawgmoth, Thran Physician's targeted counter placement. Every time a -1/-1 counter shrinks Scurry Oak, applying a +1/+1 counter right back triggers a brand new Squirrel token to replace the creature you just sacrificed to Yawgmoth's activation cost. Meanwhile, Relic Vial quietly watches the carnage as a Cleric turns every single sacrifice into a life swing against your opponents, fueling Yawgmoth's card draw until you dig through your entire deck.