General Hayato

Help with weapon please So i have a Fafnir Raven Ring that has 254 atk, 3 line rare potential, 10 star enhancement,and with 0 vicious of hammers applied. So i was wondering if i should apply a viscous hammer to it and use a 90% scroll on said weapon, or if it would be better to just try and create an entirely Fafnir Raven Ring? Thank you kindly for the help in advance :D I apologize if this question seems silly but i only ask because i heard that enhancing your weapon scales with its stats, or something along that line.