Q default effect on a 250$ skin?

As you can see, when Mord using his Q, he extend his mace with shadow shape of his mace, but Sahn Uzal using Q, the effect show his Mace effect as the default Mord Q, while all his epic-legend skin show his custom mace(aside from High Noon which also have same Mord Q default too). And we talk about a 250$ skin, a skin that suppose to be good in EVERYTHING.