Graceful Reprieve, Phyrexian Altar, Pearl Medallion, and Eternal Witness

Prerequisites

• Graceful Reprieve in hand
• Phyrexian Altar on the battlefield
• Pearl Medallion on the battlefield
• Eternal Witness on the battlefield
• available

Steps

1. Cast Graceful Reprieve by paying , targeting Eternal Witness
2. Activate Phyrexian Altar by sacrificing Eternal Witness, adding
3. When Eternal Witness dies, Graceful Reprieve triggers, returning Eternal Witness from your graveyard to the battlefield
4. When Eternal Witness enters the battlefield, it triggers, returning Graceful Reprieve from your graveyard to your hand
5. Repeat

Results

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