Enduring Renewal, Su-Chi, and Phyrexian Altar

Prerequisites

• Enduring Renewal on the battlefield
• Su-Chi on the battlefield
• Phyrexian Altar on the battlefield
• You have seven or more cards in your graveyard

Steps

1. Activate Phyrexian Altar by sacrificing Su-Chi, adding one mana of any color
2. Su-Chi dies, triggering itself and Enduring Renewal
3. Resolve the Su-Chi trigger, adding
4. Resolve the Enduring Renewal trigger, causing you to return Su-Chi from your graveyard to your hand
5. Cast Su-Chi by paying
6. Repeat

Results

• Infinite colored mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count