Game rule is a player may activate one artifact per permissible location. However, what if I activated an artifact on my art pile in my prep phase, and just after it was activated my opponent DoN’s or ToW’s it. Would I be able to activate another one on the same pile since it was negated and discarded, and thus it’s as if I never actually activate one there, or is the activation itself the issue (as in I already activated one on the pile) that would restrict me from activated another one on the pile and not the negation of the artifact’s ability?