Savra, Queen of the Golgari + Yawgmoth, Thran Physician + Scurry Oak

Savra, Queen of the Golgari

Yawgmoth, Thran Physician

Scurry Oak

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, Savra'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, Savra'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 loop transforms Scurry Oak into a self-sustaining engine by playing the creature's counter-generating traits against Yawgmoth, Thran Physician's sacrifice outlet. Each time Yawgmoth targets the Oak with a -1/-1 counter and draws you a card, the Oak's evolve ability answers back with a +1/+1 counter that immediately spawns a fresh 1/1 Squirrel creature token to feed back into Yawgmoth's activation cost. Meanwhile, Savra, Queen of the Golgari watches the sacrifices and life payments happen, stepping in with her passive lifegain ability to effortlessly offset the life you spend to keep the entire engine running.