Duergar Mine-Captain + Empowered Autogenerator + Encroaching Mycosynth + Myr Welder

Mana needed: {1} (at most)

URW identity

Commander legal

The 4 combo pieces

• Duergar Mine-Captain
• Empowered Autogenerator
• Encroaching Mycosynth
• Myr Welder

What must be in place

Myr Welder does not have summoning sickness.

How to execute it

1. Activate Myr Welder using Empowered Autogenerator's ability by tapping it, putting a charge counter on Myr Welder and adding {R} or {W} for each charge counter on Myr Welder.
2. Activate Myr Welder using Duergar Mine-Captain's ability by paying {1}{R/W} and untapping it, giving attacking creatures +1/+0 until end of turn.
3. Repeat.

What the combo produces

• Infinite charge counters on a permanent
• Infinite colored mana
• Infinite power for certain creatures until end of turn