Activated abilities of artifacts your opponents control can't be activated.
+1: Until your next turn, up to one target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value.
−2: You may reveal an artifact card you own from outside the game or choose a face-up artifact card you own in exile. Put that card into your hand.
![Karn, the Great Creator [War of the Spark Prerelease Promos]](http://paradoxtcg.com/cdn/shop/products/3ce3f07b-ac75-5720-8f31-cd851a493bd7.jpg?v=1702332788&width=1445)
