Right now Graia and Columnus are pointless takes next to Agripinaa. They’re simply outclassed by low damage and suppression values, with their rate of fire being more of a hindrance because of low penetration and ammo sustainability.
I’d like to see the Graia fulfil a role akin to a light machine gun - like the M249 SAW. High suppression values would help drive enemy shooters into cover, while a larger magazine would help balance out it’s lack of damage. I think the Ceaseless Barrage blessing would also synergise very well within that role.