Oathsworn Vampire + Phyrexian Altar + The Skullspore Nexus

Oathsworn Vampire

Phyrexian Altar

The Skullspore Nexus

How it works

1. Activate Phyrexian Altar by sacrificing Oathsworn Vampire, adding .
2. When Oathsworn Vampire dies, The Skullspore Nexus triggers, creating a creature token.
3. Activate Phyrexian Altar by sacrificing the creature token, adding 1.
4. Cast Oathsworn Vampire from your graveyard by paying 1.
5. Repeat.

This elegant little engine transforms a persistent little vampire into an endless stream of sacrifice fodder. By anchoring the loop with Phyrexian Altar, sacrificing Oathsworn Vampire provides the exact black mana needed to recast it from the graveyard, a return made possible because the Altar's sacrifice naturally triggers the life-gain condition required by the Vampire's static ability. Meanwhile, The Skullspore Nexus watches quietly from the sidelines, stepping in whenever the Vampire dies to leave behind a Fungus Dinosaur token whose power matches the sacrifice. Sacrificing that token to the Altar then generates the generic mana required to complete the loop, keeping the cycle spinning indefinitely.