Cauldron Familiar, Witch's Oven, Intruder Alarm, and Animate Artifact

Prerequisites

• Cauldron Familiar on the battlefield
• Witch's Oven on the battlefield
• Intruder Alarm on the battlefield
• Animate Artifact on the battlefield
• Animate Artifact attached to Witch's Oven
• Witch's Oven does not have summoning sickness

Steps

1. Activate Witch's Oven by tapping it and sacrificing Cauldron Familiar, creating a Food token
2. Activate Cauldron Familiar by sacrificing a Food token, returning it from your graveyard to the battlefield
3. Cauldron Familar enters the battlefield, triggering Intruder Alarm, untapping all creatures
4. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite sacrifice triggers
• Infinite untap of all creatures