Koll, the Forgemaster, Deathrender, and Viscera Seer

Prerequisites

• Koll, the Forgemaster on the battlefield
• Deathrender on the battlefield
• Viscera Seer on the battlefield

Steps

1. Activate Viscera Seer by sacrificing it
2. When Viscera Seer dies, Koll and Deathrender trigger
3. Resolve the Koll trigger, returning Viscera Seer from your graveyard to your hand
4. Resolve the Deathrender trigger, putting Viscera Seer from your hand onto the battlefield and attaching Deathrender to it
5. Resolve the Viscera Seer ability from step 1, causing you to scry 1
6. Repeat

Results

• Infinite death triggers
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite scry 1