Academy Manufactor, Pitiless Plunderer, Cauldron Familiar, and Ashnod's Altar

Prerequisites

• Academy Manufactor on the battlefield
• Pitiless Plunderer on the battlefield
• Cauldron Familiar on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Cauldron Familiar, adding
2. Cauldron Familar dies, triggering Pitiless Plunderer, creating a Food, a Clue, and a Treasure token
3. Activate Cauldron Familiar by sacrificing a Food token, returning Cauldron Familiar from your graveyard to the battlefield
4. Cauldron Familiar enters the battlefield, causing each opponent to lose 1 life and you to gain 1 life
5. Repeat

Results

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