Roxanne, Starfall Savant + Basalt Monolith + Artificer Class

Roxanne, Starfall Savant

Basalt Monolith

Artificer Class

How it works

1. At the beginning of your end step, Artificer Class triggers, creating a token copy of Basalt Monolith.
2. Activate the token Basalt Monolith's first ability by tapping it, adding CCC.
3. Roxanne's second ability triggers, adding C.
4. Activate the token Basalt Monolith's second ability by paying 3, untapping it.
5. Repeat from step 2.