Eternal Scourge, Eye of Ugin, Ashnod's Altar, and Planar Void

Prerequisites

• Eternal Scourge on the battlefield
• Eye of Ugin on the battlefield
• Ashnod's Altar on the battlefield
• Planar Void on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Eternal Scourge, adding
2. Planar Void triggers, exiling Eternal Scourge
3. Cast Eternal Scourge from exile by paying
4. Repeat

Results

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