Dragonspeaker Shaman

Cost reduction tied to a single creature type is a fragile engine, and this one was built for the most punishing payload in the game. A 2/2 that knocks off every Dragon you cast turns a flight of expensive fliers (a cycle of mono-red bombs topped by Dragon Tyrant) from late-game luxuries into curve-respecting threats: cast the shaman on turn three, and a five-mana Dragon drops to three and lands the following turn, a full turn ahead of schedule, while a six-mana one arrives two turns early. The catch is the one every "creature that makes a deck possible" pays. The discount rides on a 2/2 that dies to almost any removal, and stripping it before the payoff lands snaps every Dragon in hand back to retail price. That tension defined a brief mono-red Dragon archetype that asked you to defend a three-drop long enough to deploy something that could end the game by itself. It belongs to the small family of type-locked cost reducers that demand total commitment to one tribe rather than offering a generically useful rate, a lineage that runs through later enablers willing to make a fragile body the linchpin of an entire deck. The shaman never carried a format on its own; it made an expensive idea playable for exactly as long as it survived combat.