Karn, the Great Creator is a rare Legendary Planeswalker — Karn card from Magic: The Gathering (Magic Online Promos, PRM).
Rare
Magic Online Promos (PRM)
{4}
Mana Value
4
Card Text
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.
