Cathars' Crusade + Yahenni, Undying Partisan
Produces: Infinite +1/+1 counters on most creatures you control, Infinite ETB, Infinite LTB, Infinite death triggers, Infinite sacrifice triggers
- Color identity
- WB
Steps
- Activate Yahenni by sacrificing the persist creature.
- When the persist creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
- When the persist creature enters, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control.
- Resolve the Yahenni ability.
- Repeat