Gerrard, Weatherlight Hero, Blade of Shared Souls, Ashnod's Altar, and Eternal Scourge

Prerequisites

• Gerrard, Weatherlight Hero on the battlefield
• Blade of Shared Souls on the battlefield
• Ashnod's Altar on the battlefield
• Eternal Scourge in hand or in exile
• You control at least three additional nontoken creatures

Steps

1. Activate Ashnod's Altar twice by sacrificing three nontoken creatures, adding
2. Cast Eternal Scourge by paying
3. Activate Blade of Shared Souls' equip ability by paying , attaching it to Eternal Scourge
4. Blade of Shared Souls triggers, causing Eternal Scourge to become a copy of Gerrard
5. Put Eternal Scourge into your graveyard due to the legend rule
6. When Eternal Scourge dies as a copy of Gerrard, it triggers, exiling itself and returning all other artifact and creature cards put into your graveyard this turn to the battlefield
7. Repeat

Results

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