Karn, Legacy Reforged (Retro) [March of the Machine: The Aftermath] Elemental we would never have known

we would never have known the machine's true potential

then put two cards from your hand on top of your library in any order

players can't untap more than two permanents during their untap steps

Set: Rinascimento Type: Land Rarity: Uncommon Whenever City of Brass becomes tapped

Set: 30th Anniversary Edition Type: Token Creature — Elf Druid Rarity: Common Cost: {G} {T}: Add {G}

Karn, Legacy Reforged (Retro) [March of the Machine: The Aftermath] Elemental we would never have knownSet: 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.