U didn't do everything like u should.
1. Check if ur dbmon is giving u any errors regarding skill file
2. Check do u have effects for that skill in status.csv and what number u used for "iconindex"
3. Check /script/effect/modelleffect u are looking for some numbers!(tip search by skill name ctrl+f :P, u will figure out when u see numbers..)
4.Add those numbers to property/effect files.
5.Add all textures that have anything with that skill , search for it.
I told u everything that's need to be done