About Constellations for Durin in Chasca Team

I got C1 Durin like an hour ago. In Durin (Winds) - Mona (Emblem) - Ororon (Cinder), how much of a damage increase can I expect going from C0 - C1? How much does it increase Chasca's personal damage? Just wondering because I can't quite do Miliastra tests right now.