Myr Welder, Nyx Lotus, and Staff of Domination

Prerequisites

• Myr Welder on the battlefield
• Nyx Lotus in exile
• Staff of Domination on the battlefield or in exile

Steps

1. Activate Myr Welder using Nyx Lotus's ability by tapping it, adding at least two mana of any color you have devotion to
2. If Staff of Domination is exiled, activate Myr Welder using Staff of Domination's first ability by paying , untapping it
3. Otherwise, activate Staff of Domination's third ability by paying and tapping it, untapping Myr Welder
4. Then, activate Staff of Domination's first ability by paying , untapping it
5. Repeat

Results

• Infinite mana of colors you have devotion to