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 equal to its converted mana cost.
[-2]: You may choose an artifact card you own from outside the game or in exile, reveal that card, and put it into your hand.
![Karn, the Great Creator [Promo Pack: Theros Beyond Death] | Gate City Games LLC](http://gatecitygames.us/cdn/shop/products/207620_200w.jpg?v=1589892895)
