Dawn Evangel, Phyrexian Altar, Mana Matrix, Everflame Eidolon, and Nyxborn Shieldmate

Prerequisites

• Dawn Evangel on the battlefield
• Phyrexian Altar on the battlefield
• Mana Matrix on the battlefield
• Everflame Eidolon on the battlefield
• Nyxborn Shieldmate on the battlefield
• Everflame Eidolon attached to Nyxborn Shieldmate

Steps

1. Activate Phyrexian Altar by sacrificing Nyxborn Shieldmate, adding
2. Nyxborn Shieldmate leaves the battlefield, causing Everflame Eidolon to become an enchantment creature
3. Dawn Evangel triggers, returning Nyxborn Shieldmate from your graveyard to your hand
4. Cast Nyxborn Shieldmate for its bestow cost by paying , attaching it to Everflame Eidolon
5. Activate Phyrexian Altar by sacrificing Everflame Eidolon, adding
6. Everflame Eidolon leaves the battlefield, causing Nyxborn Shieldmate to become an enchantment creature
7. Dawn Evangel triggers, returning Everflame Eidolon from your graveyard to your hand
8. Cast Everflame Eidolon for its bestow cost by paying , attaching it to Nyxborn Shieldmate
9. Repeat

Results

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