Myr Welder, Staff of Domination, and The Great Henge

Prerequisites

• Myr Welder on the battlefield
• Staff of Domination in exile
• The Great Henge in exile

Steps

1. Activate Myr Welder using The Great Henge's ability by tapping it, adding and causing you to gain 2 life
2. Activate Myr Welder using Staff of Domination's first ability by paying , untapping it
3. Repeat

Results

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