Kurkesh, Onakke Ancient + Basalt Monolith + Chromatic Orrery

Kurkesh, Onakke Ancient

Basalt Monolith

Chromatic Orrery

How it works

1. Activate Basalt Monolith's first ability by tapping it, adding CCC.
2. Activate Basalt Monolith's last ability by paying 3.
3. Kurkesh triggers, causing you to pay 1 to copy Basalt Monolith's last ability.
4. Resolve the copy of Basalt Monolith's last ability, untapping it.
5. Activate Basalt Monolith's first ability by tapping it, adding CCC.
6. Resolve the Basalt Monolith ability from step 2, untapping it.
7. Repeat.