Sephara, Sky's Blade, Faces of the Past, Enduring Renewal, and Phyrexian Altar

Prerequisites

• Sephara, Sky's Blade in hand
• Faces of the Past on the battlefield
• Enduring Renewal on the battlefield
• Phyrexian Altar on the battlefield
• You control at least four Angels that have flying
• available

Steps

1. Cast Sephara by paying and tapping four Angels with flying
2. Activate Phyrexian Altar by sacrificing Sephara, adding
3. When Sephara dies, Enduring Renewal and Faces of the Past trigger
4. Resolve the Enduring Renewal trigger, returning Sephara from your graveyard to your hand
5. Resolve the Faces of the Past trigger, untapping all Angels
6. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count
• Infinite untap of all Angels