Toph, the First Metalbender, Urborg, Tomb of Yawgmoth, Staff of Domination, and Regal Behemoth

Prerequisites

• Toph, the First Metalbender on the battlefield
• Urborg, Tomb of Yawgmoth on the battlefield
• Staff of Domination on the battlefield
• Regal Behemoth on the battlefield

Steps

1. Activate Staff of Domination by tapping it, adding as it's a Swamp land due to Toph and Urborg Regal Behemoth triggers, adding
2. Activate Staff of Domination's first ability by paying , untapping it
3. Repeat

Results

• Infinite lifegain triggers
• Infinite lifegain
• Infinite card draw
• Infinite untap of creatures you control
• Infinite draw triggers
• Infinite mana creatures you control can produce
• Infinite black mana