Myr Welder, Staff of Domination, and Sceptre of Eternal Glory

Prerequisites

• Myr Welder on the battlefield
• Staff of Domination in exile
• Sceptre of Eternal Glory in exile

Steps

1. Activate Myr Welder using Sceptre of Eternal Glory's ability by tapping it, adding at least three mana of any color
2. Activate Myr Welder using Staff of Domination's first ability by paying , untapping it
3. Repeat

Results

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