Sharuum the Hegemon, Helvault, and Krark-Clan Ironworks

Prerequisites

• Sharuum the Hegemon on the battlefield
• Helvault on the battlefield
• Krark-Clan Ironworks on the battlefield
• available

Steps

1. Activate Helvault by paying and tapping it, exiling Sharuum
2. Activate Krark-Clan Ironworks by sacrificing Helvault, adding
3. Helvault triggers, returning Sharuum to the battlefield from exile
4. Sharuum enters the battlefield, returning Helvault from your graveyard to the battlefield
5. Repeat

Results

• Infinite colorless mana
• Infinite ETB
• Infinite LTB