Artifact Mission.

Equipt an ATK type champion with Gauntlets, Chestplate, and Boots with ATK (%) as their primary stas.

seem to be having an issue with this have equiped many champions but stuck as i have 2/3 in this mission, i have used champion incubus it says he is ATK champion and also shows the skull sign, i have equiped the three items above from the sewers of arnoc but it does not work can you help