Enduring Renewal, and Phyrexian Altar

Prerequisites

• Enduring Renewal on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing the creature, adding one mana of any color
2. When the creature dies, Enduring Renewal triggers, returning the creature from your graveyard to your hand
3. Cast the creature by paying its mana cost
4. Repeat

Results

• Infinite death triggers
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite storm count