Enduring Vitality + Zur, Eternal Schemer + Concordant Crossroads + Phyrexian Altar

Prerequisites

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Steps

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

Effects

• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers