Basalt Monolith + Heartstone + Myr Welder

C identity

Commander legal

The 3 combo pieces

• Basalt Monolith
• Heartstone
• Myr Welder

How to execute it

1. Activate Myr Welder using Basalt Monolith's first ability by tapping it, adding {C}{C}{C}.
2. Activate Myr Welder using Basalt Monolith's second ability by paying {2}, untapping it.
3. Repeat.

What the combo produces

• Infinite colorless mana