Squee, the Immortal, Pawn of Ulamog, Pitiless Plunderer, and Phyrexian Altar

Prerequisites

• Squee, the Immortal on the battlefield
• Pawn of Ulamog on the battlefield
• Pitiless Plunderer on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Squee, adding
2. When Squee dies, Pawn of Ulamog and Pitiless Plunderer trigger, creating a 0/1 Eldrazi Spawn creature token and a Treasure token
3. Activate the Eldrazi Spawn by sacrificing it, adding
4. When the Eldrazi Spawn dies, Pitiless Plunderer triggers, creating a Treasure token
5. Activate a Treasure by tapping and sacrificing it, adding
6. Cast Squee from your graveyard by paying
7. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite Treasure tokens