Thraben Doomsayer, Thornbite Staff, and Viscera Seer

Prerequisites

• Thraben Doomsayer on the battlefield
• Thornbite Staff on the battlefield
• Viscera Seer on the battlefield
• Thraben Doomsayer does not have summoning sickness
• Thornbite Staff attached to Thraben Doomsayer

Steps

1. Activate Thraben Doomsayer by tapping it, creating a 1/1 Human creature token
2. Activate Viscera Seer by sacrificing the Human
3. When the Human dies, Thraben Doomsayer triggers, untapping Thraben Doomsayer
4. Resolve the Viscera Seer ability, causing you to scry 1
5. Repeat

Results

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