One of the more interesting design traits of the new Instrument of Doom cannon was that Ves focused on increasing its inherent firepower as much as possible.
By making sure that the luminar crystal cannon already started off with unreasonably high single-shot attack power from the beginning, Ves could help it attain ridiculous damage results by applying multiple forms of amplification!
For example, if a weapon like the Instrument of Vengeance rifle possessed a base damage index of 100, Venerable Stark might be able to increase that figure to 400 or something after resonating with the weapon.
This was the limit that she could achieve with her resonance strength and other factors.
One of the design choices that Ves sometimes regretted was that the Instrument of Vengeance did not come with any further amplification mechanisms.