Reaper King + Overseer of the Damned + Arcane Adaptation

Prerequisites

• You have a way to cause a creature to enter the battlefield.
• "Scarecrow" chosen with Arcane Adaptation.

Steps

1. 1Cause a creature to enter the battlefield.
2. 2Reaper King triggers, destroying target nontoken creature an opponent controls.
3. 3The creature dies, triggering Overseer of the Damned, creating a 2/2 Zombie creature token.
4. 4The Zombie enters the battlefield as a Scarecrow due to Arcane Adaptation, triggering Reaper King, destroying target nontoken creature an opponent controls.
5. 5Repeat from step 3.
6. 6This loop will also repeat whenever another creature enters the battlefield under your control.

Effects

• Destroy all nontoken creatures opponents control whenever a creature enters the battlefield under your control
• Lock