Requires

Purphoros, Bronze-Blooded must be on the battlefield. Firestorm Phoenix must be in hand. Phyrexian Altar must be on the battlefield. Mana Echoes must be on the battlefield. You control at least one Phoenix. Mana needed:

Steps

1. Activate Purphoros by paying , putting Firestorm Phoenix onto the battlefield from your hand.
2. When Firestorm Phoenix enters the battlefield, Mana Echoes triggers, adding at least .
3. Activate Phyrexian Altar by sacrificing Firestorm Phoenix, adding .
4. Firestorm Phoenix is returned to your hand instead of being put into your graveyard.
5. Repeat.
6. If there are at least two other Phoenixs on the battlefield, this combo will produce infinite colorless mana.

Results