The advantage of Amenona Kageuchi is that it has a good secondary stat and usually supports require energy recharge which is provided by the passive making it a generic weapon for a lot of characters.
Well your wish is granted, almost.
For characters like Ayaka though, it's a good weapon.
This catalyst can reach up to 510 base attack and provide a 41.
Otherwise, just go with Prototype Archaic.
Weapons are essential in increasing the versatility and stats of the characters like attack, energy recharge, etc.