Cauldron Familiar, Witch's Oven, Clock of Omens, and Doubling Season

Prerequisites

• Cauldron Familiar on the battlefield
• Witch's Oven on the battlefield
• Clock of Omens on the battlefield
• Doubling Season on the battlefield

Steps

1. Activate Witch's Oven by tapping and sacrificing Cauldron Familiar, creating two Food tokens
2. Activate Clock of Omens by tapping two Food tokens, untapping Witch's Oven
3. Activate Cauldron Familiar by sacrificing a Food, returning Cauldron Familiar from your graveyard to the battlefield
4. When Caludron Familiar enters the battlefield, it triggers, causing each opponent to lose 1 life and you to gain 1 life
5. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers
• Infinite lifeloss
• Infinite LTB
• Infinite sacrifice triggers
• Infinite tapped Food tokens