Cauldron Familiar + Witch's Oven + Intruder Alarm + March of the Machines + Eldrazi Monument

Cauldron Familiar

Witch's Oven

Intruder Alarm

March of the Machines

Eldrazi Monument

How it works

1. Activate Witch's Oven by tapping it and sacrificing Cauldron Familiar, creating a Food artifact token.
2. When the Food enters the battlefield as a creature due to March of the Machines, Intruder Alarm triggers, untapping all creatures.
3. Activate Cauldron Familiar by sacrificing a Food token, returning it from your graveyard to the battlefield.
4. When Cauldron Familar enters the battlefield, it and Intruder Alarm trigger.
5. Resolve the Cauldron Familiar trigger, causing each opponent to lose 1 life and you to gain 1 life.
6. Resolve the Intruder Alarm trigger, untapping all creatures.
7. Repeat.

This loop turns a humble cat-and-oven routine into a perpetual motion machine by turning your kitchenware into creatures. With March of the Machines animating Witch's Oven and any resulting Food tokens into artifact creatures, every time a Food token enters the battlefield, Intruder Alarm triggers to untap all creatures—including the Oven itself. This allows you to continuously sacrifice Cauldron Familiar to the Oven to drain your opponents, then use that newly created Food token to bring the Familiar right back. Meanwhile, Eldrazi Monument provides a convenient home for the endless sacrifices your upkeep demands while protecting your newly minted artifact creature army with indestructible flight.