Teysa, Orzhov Scion + Darkest Hour + Umbral Collar Zealot

Teysa, Orzhov Scion

Darkest Hour

Umbral Collar Zealot

How it works

1. Activate Umbral Collar Zealot by sacrificing another creature.
2. When the creature dies, Teysa triggers, creating a 1/1 Spirit creature token that is black due to Darkest Hour.
3. Resolve the Umbral Collar Zealot ability.
4. Repeat.

This clever setup transforms Umbral Collar Zealot's sacrifice outlet into an infinite engine by leveraging the passive enchantment Darkest Hour, which paints every creature on the board black. Because of this color shift, the Spirit token created by Teysa, Orzhov Scion's triggered ability enters as a black creature, meaning its eventual death will in turn trigger Teysa all over again. You can feed this newly minted token right back into Umbral Collar Zealot to repeat the cycle endlessly, generating infinite death, sacrifice, and entry triggers while digging infinitely deep with the zealot's surveil ability.