Karn, the Great Creator (Japanese Alternate Art) [War of the Spark Promos] sealed Stronghold Furnace

Stronghold Furnace

each player may top the high bid

Set: Pro Tour Collector Set Type: Sorcery — Rarity: Rare Cost: {3}{W} Destroy all lands

"The more secrets you have

Karn, the Great Creator (Japanese Alternate Art) [War of the Spark Promos] sealed Stronghold FurnaceSet: War of the Spark 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 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.