Karn, the Great Creator (Japanese Alternate Art) [War of the Spark] URL/Convention Promos Then if a graveyard has

Then if a graveyard has twenty or more cards in it

Set: Sun & Moon: Cosmic Eclipse Type: Dragon Rarity: Secret Rare Retreat cost: Colorless

Jace traced Nahiri to the Singing City

−3: Destroy target artifact

Set: EX: Hidden Legends Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

Karn, the Great Creator (Japanese Alternate Art) [War of the Spark] URL/Convention Promos Then if a graveyard hasSet: 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.