Peregrin Took + Cauldron Familiar + Pitiless Plunderer + Phyrexian Altar

Prerequisites

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Steps

1. 1Activate Phyrexian Altar by sacrificing Cauldron Familiar, adding one mana of any color.
2. 2When Cauldron Familiar dies, Pitiless Plunderer triggers, creating a Treasure and a Food artifact token.
3. 3Activate Cauldron Familiar by sacrificing the Food, returning Cauldron Familiar to the battlefield from your graveyard.
4. 4When Cauldron Familiar enters the battlefield, it triggers, causing each opponent to lose 1 life and you to gain one life.
5. 5Repeat.

Effects

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