Torpid Moloch [Ravnica: City of Guilds] Giant Berserker Argentum is Karn's original name

Argentum is Karn's original name for that plane

Set: Sun & Moon: Crimson Invasion Type: Water Rarity: Ultra Rare Retreat cost: Colorless

Set: Wilds of Eldraine Commander Type: Enchantment — Aura Rarity: Common Cost: {2}{G} Enchant artifact or creature

We're perfectly save here

Torpid Moloch [Ravnica: City of Guilds] Giant Berserker Argentum is Karn's original nameSet: Ravnica: City of Guilds Type: Creature Lizard Rarity: Common Cost: {R} Defender (This creature can't attack.) Sacrifice three lands: Torpid Moloch loses defender until end of turn. Market hucksters sell molochs for use as watchdogs. Of course, that's all molochs do. Sit around . . . and watch.