Enduring Vitality + Zur, Eternal Schemer + Phyrexian Altar + Frostcliff Siege

Enduring Vitality

Zur, Eternal Schemer

Phyrexian Altar

Frostcliff Siege

How it works

1. If Enduring Vitality is not a creature, activate Zur by paying 1, causing Enduring Vitality to become a creature.
2. Activate Enduring Vitality by tapping it, adding .
3. Activate Phyrexian Altar by sacrificing Enduring Vitality, adding 1.
4. When Enduring Vitality dies, it triggers, returning itself from your graveyard to the battlefield as an enchantment.
5. Repeat.

This brilliant loop transforms the persistent enchantment **Enduring Vitality** into an unkillable engine, fueled entirely by the sacrifice outlet **Phyrexian Altar**. By using **Zur, Eternal Schemer** to animate **Enduring Vitality** into a creature, you unlock its activated mana ability to generate the white mana required for Zur's upkeep while leveraging the Altar to keep the cycle going. Because **Enduring Vitality**'s own death trigger instantly returns it to the battlefield as a non-creature enchantment when it dies, it effortlessly sidesteps permanent destruction to reset the loop. Meanwhile, **Frostcliff Siege** sits safely on the board, enhancing your entire engine's battlefield presence while this infinite sacrifice cycle quietly loops away.