Nether Traitor + Phyrexian Altar + Bridge from Below

Nether Traitor

Phyrexian Altar

Bridge from Below

How it works

1. Activate Phyrexian Altar by sacrificing Nether Traitor, adding .
2. When Nether Traitor dies, Bridge from Below triggers, creating a creature token.
3. Activate Phyrexian Altar by sacrificing the creature token, adding one mana of any color.
4. When the creature token dies, Nether Traitor triggers, causing you to pay to return Nether Traitor from your graveyard to the battlefield.
5. Repeat.

This elegant loop transforms the graveyard into a reliable engine for infinite resources. You begin by feeding Nether Traitor to Phyrexian Altar, generating the black mana needed to trigger the Traitor's own resurrection ability. That very sacrifice simultaneously awakens Bridge from Below in your graveyard, spawning a Zombie token to replace the fallen assassin. You then sacrifice that freshly minted token to Phyrexian Altar for any color of mana, fueling the loop and triggering Nether Traitor's return from the dead to restart the cycle.