Bishop of Wings + Yahenni, Undying Partisan + Leyline of Transformation

Bishop of Wings

Yahenni, Undying Partisan

Leyline of Transformation

How it works

1. Activate Yahenni by sacrificing another creature.
2. When the creature dies, Bishop of Wings' second ability triggers, creating a 1/1 Spirit creature token.
3. When the Spirit token enters the battlefield as an Angel due to Leyline of Transformation, Bishop of Wings' first ability triggers, causing you to gain 4 life.
4. Resolve the Yahenni ability.
5. Repeat.

This clever loop turns Yahenni, Undying Partisan into a self-sustaining sacrifice engine by taking advantage of Leyline of Transformation's typeline-altering aura, which redefines every creature you own as an Angel. With that blanket type applied, the 1/1 Spirit tokens generated by Bishop of Wings upon a creature's death immediately enter the battlefield as Angels themselves. This instantly triggers Bishop of Wings's first ability to pad your life total, providing a steady stream of sacrificial fodder that loops infinitely to feed Yahenni's hunger and rack up endless triggers.