Thranduil the Strategist, Faces of the Past, Nim Deathmantle, and Viscera Seer

Prerequisites

• Thranduil the Strategist on the battlefield
• Faces of the Past on the battlefield
• Nim Deathmantle on the battlefield
• Viscera Seer on the battlefield

Steps

1. Activate at least four Elves other than Thranduil by tapping them, adding at least four in any combination of and/or
2. Activate Viscera Seer by sacrificing Thranduil
3. When Thranduil dies, Nim Deathmantle and Faces of the Past trigger
4. Resolve the Nim Deathmantle trigger, causing you to pay to return Thranduil from your graveyard to the battlefield and attach Nim Deathmantle to it
5. Resolve the Faces of the Past trigger, untapping all Elves and Nobles
6. Resolve the Viscera Seer ability
7. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite blue mana
• Infinite death triggers
• Infinite green mana
• Infinite sacrifice triggers
• Infinite scry 1
• Infinite untap of all creatures of a certain creature type