Zirda, the Dawnwaker + Dino DNA + Ashnod's Altar + Priest of Urabrask
Zirda, the Dawnwaker
Dino DNA
Ashnod's Altar
Priest of Urabrask
Infinite colorless manaInfinite copies of cards exiled with Dino DNAInfinite creature tokensInfinite death triggersInfinite creature ETBInfinite creature LTBInfinite red manaInfinite creature sacrifice triggers
How it works
Activate Dino DNA by paying 4, creating a token copy of Priest of Urabrask that is a 6/6 Dinosaur.
When the Priest of Urabrask token enters the battlefield, it triggers, adding .
Activate Ashnod's Altar by sacrificing the Priest of Urabrask token, adding CC.
Repeat.
Once you have infinite mana, you may forego sacrificing the Priest of Urabrask tokens.
This clever loop centers around Dino DNA's ability to manufacture a steady stream of cloned creatures from your graveyard, fueled wonderfully by Zirda, the Dawnwaker's cost-reduction ability which drops that cloning activation down from six mana to a much more manageable four. Whenever a freshly spawned Priest of Urabrask token hits the battlefield, its enters-the-battlefield trigger instantly yields a burst of red mana to help fund the operation. Finally, Ashnod's Altar acts as the sacrificial outlet that turns each token into a pair of colorless mana while cleanly clearing the board for the next iteration.