The Serpent Society + Overseer of the Damned + Archetype of Finality + Yahenni, Undying Partisan

Prerequisites

• You control another creature.

Steps

1. 1When an opponent controls a nontoken creature, activate Yahenni by sacrificing another creature.
2. 2When the creature dies, The Serpent Society triggers, causing each opponent to sacrifice a creature.
3. 3When the opposing creature(s) die, Overseer of the Damned triggers that many times, creating that many tapped 2/2 Zombie creature tokens that will have deathtouch due to Archetype of Finality.
4. 4Resolve the Yahenni ability.
5. 5Repeat as needed.

Effects

• Each opponent sacrifices all nontoken creatures they control
• Each opponent sacrifices any nontoken creature that enters under their control
• Lock