Squee, the Immortal, Sifter of Skulls, Pitiless Plunderer, and Phyrexian Altar

Prerequisites

• Squee, the Immortal on the battlefield
• Sifter of Skulls 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, Sifter of Skulls and Pitiless Plunderer trigger, creating a 1/1 Eldrazi Scion creature token and a Treasure token
3. Resolve the Phyrexian Altar ability
4. Activate the Eldrazi Scion by sacrificing it, adding
5. When the Eldrazi Scion dies, Pitiless Plunderer triggers, creating a Treasure token
6. Activate a Treasure by tapping and sacrificing it, adding
7. Cast Squee from your graveyard by paying
8. Repeat

Results

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