Moritte of the Frost, and Aerie Ouphes

Prerequisites

• Moritte of the Frost on the battlefield
• Aerie Ouphes on the battlefield
• There is a creature with flying on the battlefield

Steps

1. Activate Moritte of the Frost by sacrificing it, targeting any creature with flying
2. When Moritte dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. Choose to have Moritte of the Frost enter the battlefield as a copy of Aerie Ouphes with two +1/+1 counters on it
4. Remove one +1/+1 counter and one -1/-1 counter on Moritte of the Frost as a state-based action
5. Holding priority, repeat from step 1
6. Resolve all Moritte abilities, dealing infinite damage to the targeted creature(s)

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers