Karn, the Great Creator [War of the Spark Prerelease Promos] Classic Sixth Edition indestructible Kefnet the Mindful can't

indestructible Kefnet the Mindful can't attack or block unless you have seven or more cards in hand

At what price beauty

"O Great Captain

Set: Modern Masters Type: Land Rare Cost: Whenever City of Brass becomes tapped

{T}: You gain 1 life

Karn, the Great Creator [War of the Spark Prerelease Promos] Classic Sixth Edition indestructible Kefnet the Mindful can'tSet: War of the Spark Prerelease Promos Type: Legendary Planeswalker Karn Rarity: Rare Cost: {4} 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 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.