General Ferrous Rokiric

The reward for playing gold cards, made loud enough to build a deck around. Where most multicolor-matters incentives ask you to notice your spells' color identity for a small bonus, this one turns each multicolored spell you cast into a 4/4, which reframes cheap multicolored interaction (a Boros charm, a two-color removal spell, a gold cantrip) as a body-generating engine rather than a one-for-one. The 3/1 is the tension: a fragile attacker that dies to a stiff breeze, so the token stream is what keeps the general relevant even after he trades away. The hexproof-from-monocolored clause is the sharp part of the design, but it is worth being precise about its reach. It protects the general and nothing else: your multicolored spells and Golems can still be answered by monocolored cards like Counterspell or Doom Blade. And because hexproof stops targeting rather than removal, an edict such as Diabolic Edict still gets there, since it targets the player, not the creature. What the ability buys is immunity for the general from the single-color Lightning Bolts, Fatal Pushes, and Swords to Plowshares that fair decks lean on. Colorless and multicolored answers still kill him, which keeps the design self-consistent: the protection and the payoff hang on the same axis, color count, punishing decks built on efficient monocolored removal while staying vulnerable to the gold decks it wants to race.