Ascended Weapon Attribute Change
For stat changing you specifically need the exotic inscription, the ascended will not work.
The ascended inscription is for crafting an ascended weapon yourself.
Awesome thanks a lot!
FWIW, the wiki is accurate for things like this. Also, to reassure you, it’s not possible to “downgrade” an ascended weapon.
However, do watch out for one thing: if you change the stats, any sigils in the weapon will vanish in the process. So, expect to repurchase them afterwards.