Ashiok's Reaper, Mortuary, Phyrexian Altar, and Hateful Eidolon

Prerequisites

• Ashiok's Reaper on the battlefield
• Mortuary on the battlefield
• Phyrexian Altar on the battlefield
• Hateful Eidolon on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Hateful Eidolon, adding
2. When Hateful Eidolon dies, Mortuary and Ashiok's Reaper trigger
3. Resolve the Mortuary trigger, putting Hateful Eidolon on top of your library from your graveyard
4. Resolve the Ashiok's Render trigger, causing you to draw Hateful Eidolon from your library
5. Cast Hateful Eidolon by paying
6. Repeat

Results

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