Wild Pair + Horned Kavu + Sifter of Skulls + Thermopod + Vizier of the Menagerie + The Cauldron of Eternity

Wild Pair

Horned Kavu

Sifter of Skulls

Thermopod

Vizier of the Menagerie

The Cauldron of Eternity

How it works

1. Cast Horned Kavu by paying 2.
2. Horned Kavu enters the battlefield, triggering itself and Wild Pair.
3. Resolve the Horned Kavu trigger, returning it from the battlefield to your hand.
4. Resolve the Wild Pair trigger, searching your library for Thermopod and putting it onto the battlefield.
5. Activate Thermopod's second ability by sacrificing itself, adding .
6. Thermopod dies, triggering Sifter of Skulls and The Cauldron of Eternity.
7. Resolve the Sifter of Skulls trigger, creating a 1/1 Eldrazi Scion creature token.
8. Resolve the Cauldron of Eternity trigger, putting the creature on the bottom of your library from your graveyard.
9. Activate the Eldrazi Scion by sacrificing it, adding C.
10. Repeat.

This intricate loop begins when you cast Horned Kavu, whose entry triggers Wild Pair to fetch Thermopod directly from your library. Once Thermopod is sacrificed for red mana, Sifter of Skulls steps in to turn that death into an Eldrazi Scion token, which you can then sacrifice for colorless mana to recast your Kavu. Meanwhile, Vizier of the Menagerie keeps the chain flowing by letting you cast creatures straight off the top of your library regardless of color, while The Cauldron of Eternity quietly recycles your fallen pieces to the bottom of your deck so they never truly run out.