Basalt Monolith + Heartstone + Katsumasa, the Animator
Mana needed: {2}{U}
U identity
Commander legal
The 3 combo pieces
What must be in place
Basalt Monolith does not have summoning sickness.
How to execute it
- Activate Katsumasa by paying {2}{U}, causing Basalt Monolith to become an artifact creature until end of turn.
- Activate Basalt Monolith's first ability by tapping it, adding {C}{C}{C}.
- Activate Basalt Monolith's last ability by paying {2}, untapping it.
- Repeat from step 2.
What the combo produces
- Infinite colorless mana