Basalt Monolith + Training Grounds + Trazyn the Infinite

UB identity

Commander legal

The 3 combo pieces

• Basalt Monolith
• Training Grounds
• Trazyn the Infinite

How to execute it

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

What the combo produces

• Infinite colorless mana