Karn, Legacy Reforged (Retro) [March of the Machine: The Aftermath] XY188 calculate the hypotenuse of another

calculate the hypotenuse of another creature you control

Set: Sun & Moon: Unbroken Bonds Type: Supporter Rarity: Promo

Then target opponent may have you draw a card

Set: Wizards of the Coast: Black Star Promos Type: Metal Rarity: Black Star Promo Retreat cost: Colorless

Set: Team Rocket Unlimited Type: Fire Rarity: Holo Rare Retreat cost: Colorless

Karn, Legacy Reforged (Retro) [March of the Machine: The Aftermath] XY188 calculate the hypotenuse of anotherSet: March of the Machine: The Aftermath Type: Legendary Artifact Creature Golem Rarity: Mythic Cost: {5} Karn, Legacy Reforged's power and toughness are each equal to the greatest mana value among artifacts you control. At the beginning of your upkeep, add C for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.