Zirda, the Dawnwaker, Dino DNA, Ashnod's Altar, and Cathodion

Prerequisites

• Zirda, the Dawnwaker on the battlefield
• Dino DNA on the battlefield
• Ashnod's Altar on the battlefield
• Cathodion in exile
• available

Steps

1. Activate Dino DNA's second ability by paying , creating a token copy of Cathodion that is a 6/6 Dinosaur
2. Activate Ashnod's Altar by sacrificing the Cathodion token, adding
3. When the Cathodion token dies, it triggers, adding
4. Repeat

Results

• Infinite colorless mana
• Infinite copies of cards exiled with Dino DNA
• Infinite creature tokens
• Infinite ETB