Tenacious Dead, Altar of Dementia, Pitiless Plunderer, and Pawn of Ulamog

Prerequisites

• Tenacious Dead on the battlefield
• Altar of Dementia on the battlefield
• Pitiless Plunderer on the battlefield
• Pawn of Ulamog on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Tenacious Dead
2. When Tenacious Dead dies, it triggers itself, Pitiless Plunderer and Pawn of Ulamog
3. Resolve the Pitiless Plunderer trigger, creating a Treasure token
4. Resolve the Pawn of Ulamog trigger, creating a 0/1 Eldrazi Spawn creature token
5. Resolve the Altar of Dementia ability, causing target player to mill one card
6. Activate the Treasure by tapping and sacrificing it, adding
7. Activate the Eldrazi Spawn by sacrificing it, adding
8. When the Eldrazi Spawn dies, Pitiless Plunderer triggers, creating a Treasure token
9. Resolve Tenacious Dead's ability from step 2, paying to return it from your graveyard to the battlefield tapped
10. Repeat any number of times
11. Once you have infinite Treasure tokens, you may repeat this loop spending mana from Treasures instead of Eldrazi Spawns in step 7, giving you infinite Eldrazi Spawn tokens

Results

• Infinite colored mana
• Infinite colorless mana
• Infinite creature tokens with 0 power
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinitely self-mill
• Infinite mill
• Infinite sacrifice triggers
• Infinite Treasure tokens