Basalt Monolith + Replication Specialist + Roxanne, Starfall Savant

Mana needed: {4}{U}

GUR identity

Commander legal

The 3 combo pieces

• Basalt Monolith
• Replication Specialist
• Roxanne, Starfall Savant

How to execute it

1. Cast Basalt Monolith by paying {3}.
2. When Basalt Monolith enters the battlefield, Replication Specialist triggers, causing you to pay {1}{U} to create a token copy of Basalt Monolith.
3. Activate the token Basalt Monolith's first ability by tapping it, adding {C}{C}{C}.
4. Roxanne's second ability triggers, adding {C}.
5. Activate the token Basalt Monolith's second ability by paying {3}, untapping it.
6. Repeat from step 3.

What the combo produces

• Infinite colorless mana