Karn the Great Creator Stained Glass

“<div class="SecretLair"><strong> Stained Glass Planeswalkers</strong></div><br>Activated abilities of artifacts your opponents control can’t be activated. <br>[+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. <br>[-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.”