Crime Novelist, Triskelavus, and Agatha's Soul Cauldron

Prerequisites

• Crime Novelist on the battlefield
• Triskelavus in exile
• Agatha's Soul Cauldron on the battlefield
• available

Steps

1. Activate Crime Novelist using Triskelavus's ability by paying and removing a +1/+1 counter from it, creating a 1/1 Triskelavite creature token
2. Activate the Triskelavite by sacrificing it
3. Crime Novelist triggers, putting a +1/+1 counter on it and adding
4. Resolve the Triskelavite ability, dealing 1 damage to any target
5. Repeat

Results

• Infinite damage
• Infinite death triggers
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers