Enduring Vitality, Zur, Eternal Schemer, Hammer of Purphoros, and Phyrexian Altar

Prerequisites

• Enduring Vitality on the battlefield
• Zur, Eternal Schemer on the battlefield
• Hammer of Purphoros on the battlefield
• Phyrexian Altar on the battlefield
• if Enduring Vitality is not a creature available

Steps

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

Results

• Infinite LTB
• Infinite sacrifice triggers
• Infinite death triggers