[EenKogNeeto]

Shine Knighting itself is pretty solid, though has the same issue that shine knights do where its power is all in the -hit debuff rather than anything holy or knighty.

The sword has trash and unusable scaling and isn't even a casting tool so its very hard to use in any capacity. I'de personally suggest making it spelledge and changing its scaling to something more usable like 50Str/50Fai.
I don't think ive seen anyone ever actually use a shine sword so much as casting the potential and swapping for a better scaling weapon.