Karn, the Great Creator [War of the Spark Prerelease Promos] Iconic Masters What could you possibly do

What could you possibly do to injure me

Discard a card with mana value X: Counter target spell with mana value X

Set: Promotional Planes Type: Plane — Zendikar Rarity: Rare Creatures can't block

Set: Unlimited Edition Type: Artifact Rarity: Uncommon Cost: {3} Basalt Monolith doesn't untap during your untap step

except it doesn't copy that creature's color and it has this ability

Karn, the Great Creator [War of the Spark Prerelease Promos] Iconic Masters What could you possibly doSet: 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