Endless Cockroaches, Deathrender, and Viscera Seer

Prerequisites

• Endless Cockroaches on the battlefield
• Deathrender on the battlefield
• Viscera Seer on the battlefield

Steps

1. Activate Viscera Seer by sacrificing Endless Cockroaches
2. Endless Cockroaches dies, triggering itself and Deathrender
3. Resolve the Endless Cockroaches trigger, returning it from your graveyard to your hand
4. Resolve the Deathrender trigger, putting Endless Cockroaches onto the battlefield from your hand, 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