Karn, Legacy Reforged (Foil Etched) [March of the Machine: The Aftermath] March of the Machine if you cast it from

if you cast it from your hand

exile Nissa

but no green thing grew there in the latter days of Saruman

Spells from the chosen plane cost W

T: Add G or U

Karn, Legacy Reforged (Foil Etched) [March of the Machine: The Aftermath] March of the Machine if you cast it fromSet: 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.