excuse me, what exactly do you mean by "artifact"? Because in my understanding the vid at hand was epic/legendary (voted last) but I could not really relate to artifact, because that means (as said, in my understanding) old, maybe rusty oder damaged, even though worth being seen and valued.
That is my opinion - with the result of having voted for legendary
"In war, boy, fools kill fools for foolish causes." (Thom Merillin - Wheel of Time)