Karn, the Great Creator [War of the Spark Prerelease Promos] Duel The son of Gerrard's surrogate

The son of Gerrard's surrogate father

Set: Alpha Edition Type: Instant Rarity: Rare Cost: {U} Change the text of target spell or permanent by replacing all instances of one color word with another

there is an additional combat phase

White Cliffs of Dover

the controller of the permanent it becomes sacrifices it at the beginning of the next cleanup step

Karn, the Great Creator [War of the Spark Prerelease Promos] Duel The son of Gerrard's surrogateSet: 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 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