The Serum Type: Token Rarity: Token Mana Cost: — Color Identity: Colorless Reminder card. Serum: an artifact token with "{1}, Sacrifice this artifact: Drink the Serum. Activate only as a sorcery." Drink the Serum: your commander turns over — Dr. Henry Jekyll becomes Mr. Edward Hyde, and Hyde becomes Jekyll again. It stays that way until you drink again. Cards that say "Whenever you Drink the Serum" trigger either way. Hyde — : works only while you control Mr. Edward Hyde. “One man in the morning, another at night, and the same signature on both cheques.” Single card from the STRANGE CASE OF DR JEKYLL AND MR HYDE (The Serum) Commander deck. Sold individually.