Jeskai Artifacts relies heavily on Urza's Saga and recursive artifact engines like Goblin Welder and Goblin Engineer; Pithing Needle can shut down Urza's Saga's Construct-making ability or another key activated ability, while Prismatic Ending can exile cheap artifact creatures like Emry, Lurker of the Loch or Goblin Welder for one color of mana. Cabal Therapy is weaker here since their creature count relevant to strip is low and games are more about racing their artifact value engine than disrupting a single threat. Our own Loki, God of Mischief and Tamiyo, Inquisitive Student can out-grind their smaller artifact creatures if we clear a path with removal.