Academy Manufactor, Ulvenwald Mysteries, Cauldron Familiar, and Phyrexian Altar

Prerequisites

• Academy Manufactor on the battlefield
• Ulvenwald Mysteries on the battlefield
• Cauldron Familiar on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Cauldron Familiar, adding one mana of any color
2. Ulvenwald Mysteries' first ability triggers, creating a Clue, a Food, 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 card draw
• Infinite Clue tokens
• Infinite colored mana
• Infinite death triggers
• Infinite draw triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite Treasure tokens
• Near-infinite creature tokens