Brandywine Farmer, Infinite Reflection, Cauldron Familiar, and Phyrexian Altar

Prerequisites

• Brandywine Farmer on the battlefield
• Infinite Reflection on the battlefield
• Cauldron Familiar in the graveyard
• Phyrexian Altar on the battlefield
• Infinite Reflection attached to Brandywine Farmer
• You control a Food

Steps

1. Activate Cauldron Familiar by sacrificing a Food, returning it to the battlefield from your graveyard as a copy of Brandywine Farmer due to Infinite Reflection
2. When Cauldron Familiar enters the battlefield, it triggers, creating a Food artifact token
3. Activate Phyrexian Altar by sacrificing Cauldron Familiar, adding one mana of any color
4. When Cauldron Familiar dies, it triggers, creating a Food artifact token
5. Repeat for infinite Food tokens
6. Activate Phyrexian Altar by sacrificing Brandywine Farmer, adding one mana of any color
7. When Brandywine Farmer dies, it triggers, creating a Food artifact token
8. Activate Cauldron Familiar by sacrificing a Food, returning it to the battlefield from your graveyard
9. When Cauldron Familiar enters the battlefield, it triggers, causing each opponent to lose 1 life and you to gain one life
10. Activate Phyrexian Altar by sacrificing Cauldron Familiar, adding one mana of any color
11. Repeat from step 8

Results

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