Karn, Legacy Reforged (Future Sight) (255) [Mystery Booster 2]Rarity: M #: 255 Creature Type or Sub Type: Legendary Artifact Creature Golem P: * T: * Rules Text Contains: 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. When purchasing this unique product,