Karn, the Great Creator (Japanese Alternate Art) [War of the Spark] World Enchantment ominous power

ominous power

sacrifice this artifact unless you pay {2}

" —Phage the Untouchable

Sacrifice Windswept Heath: Search your library for a Forest or Plains card

Karn, the Great Creator (Japanese Alternate Art) [War of the Spark] World Enchantment ominous powerSet: War of the Spark 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.