Titanium Golem

The 3/3 colorless body slots into any deck, but the first-strike grant costs , and that single design choice is the whole point: a creature anyone can cast and only a white deck can fully arm. It is a soft gravity, a color preference encoded in the activation cost rather than the casting cost, pulling the Golem toward Plains without ever locking it out of an off-color deck running it as a plain beater. This trick of slipping a color into a colorless chassis was a recurring early-artifact lesson, and this is one of the cleaner illustrations of it. The grant is repeatable and instant-speed, which changes how the body behaves in combat: an activation held in reserve lets it attack or block into a 3-toughness creature and walk away clean, dealing first-strike damage that kills the blocker before the regular step ever happens. Against anything bigger it still dies, so the math is honest rather than miraculous; the value is in punishing an opponent who read it as a vanilla 3/3 and threw a same-sized creature at it, eating that blocker for the price of leaving two mana, one of it white, untapped. The skill lives in the bluff and the held mana rather than the raw stats. This is a teaching design more than a centerpiece, a legible lesson in where a creature's color identity can hide, with combat math that rewards the player paying attention to the mana the opponent forgot to respect.