Archghoul of Thraben, Mortuary, Rooftop Storm, and Ashnod's Altar

Prerequisites

• Archghoul of Thraben on the battlefield
• Mortuary on the battlefield
• Rooftop Storm on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Archghoul of Thraben, adding
2. Mortuary and Archghoul of Thraben trigger
3. Resolve the Mortuary trigger, putting Archghoul of Thraben on top of your library from your graveyard
4. Resolve the Archghoul of Thraben trigger, revealing Archghoul of Thraben from the top of your library and putting it into your hand
5. Cast Archghoul of Thraben by paying
6. Repeat

Results

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