Enduring Renewal, Umbral Collar Zealot, and Priest of Urabrask

Prerequisites

• Enduring Renewal on the battlefield
• Umbral Collar Zealot on the battlefield
• Priest of Urabrask in hand
• available

Steps

1. Cast Priest of Urabrask by paying its mana cost
2. When Priest of Urabrask enters, it triggers, adding
3. Activate Umbral Collar Zealot by sacrificing Priest of Urabrask
4. When Priest of Urabrask dies, Enduring Renewal triggers, returning Priest of Urabrask from your graveyard to your hand
5. Resolve the Umbral Collar Zealot ability, causing you to surveil 1
6. Repeat

Results

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