Asura and getting the twlight legendary
I don’t have any Legendaries, but my Guard has a Ghastly Greatsword and a Ghastly Hammer, and I can say I don’t really notice the detail when they’re in Ghastly form, but when they’re Ghostly, I see them just fine. You should still be plenty noticeable with Twilight or with any other skin that’s got some flashy effect or really big cool detail.
(While leveling, my favorite skin was that one Char one with the two blades and the gear thing in place of the crossguard, since it was really noticeable.)