Tenacious Dead, Pitiless Plunderer, Viscera Seer, and Phenomenon Investigators

Prerequisites

• Tenacious Dead on the battlefield
• Pitiless Plunderer on the battlefield
• Viscera Seer on the battlefield
• Phenomenon Investigators on the battlefield

Steps

1. Activate Viscera Seer by sacrificing Tenacious Dead
2. When Tenacious Dead dies, it, Phenomenon Investigators, and Pitiless Plunderer trigger
3. Resolve the Pitiless Plunderer trigger, creating a Treasure token
4. Resolve the Phenomenon Investigators trigger, creating a creature token
5. In response to the remaining trigger, activate Viscera Seer by sacrificing the creature token
6. When the creature token dies, Pitiless Plunderer triggers, creating a Treasure token
7. Resolve the Viscera Seer ability from step 5
8. Activate two Treasure tokens by tapping and sacrificing them, adding
9. Resolve the Tenacious Dead trigger, paying to return it to the battlefield from your graveyard
10. Resolve the Viscera Seer ability from step 1
11. Repeat

Results

• Infinite artifact LTB
• Infinite colored mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite scry 1