Mortuary, Experimental Frenzy, Priest of Urabrask, and Ashnod's Altar

Prerequisites

• Mortuary on the battlefield
• Experimental Frenzy on the battlefield
• Priest of Urabrask on the battlefield
• Ashnod's Altar on the battlefield
• available

Steps

1. Activate Ashnod's Altar by sacrificing Priest of Urabrask, adding
2. When Priest of Urabrask dies, Mortuary triggers, putting Priest of Urabrask on top of your library from your graveyard
3. Cast Priest of Urabrask from the top of your library by paying
4. When Priest of Urabrask enters the battlefield, it triggers, adding
5. Repeat

Results

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