Cauldron Familiar, Witch's Oven, Clock of Omens, and Genesis Chamber

Prerequisites

• Cauldron Familiar on the battlefield
• Witch's Oven on the battlefield
• Clock of Omens on the battlefield
• Genesis Chamber on the battlefield

Steps

1. Activate Witch's Oven by tapping and sacrificing Cauldron Familiar, creating a Food token
2. Activate Clock of Omens by tapping the Food and another artifact you control, 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 and Genesis Chamber trigger
5. Resolve the Cauldron Familiar trigger, causing each opponent to lose 1 life and you to gain 1 life
6. Resolve the Genesis Chamber trigger, creating a 1/1 Myr artifact creature token
7. Repeat

Results

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