Charging Slateback

The whole value here is positional, not statistical. Sit it among the wall of anonymous 2/2s an opponent has to read before every attack and block, and the bluff is the entire engine. The can't-block clause is the tax paid for that: even revealed, a 4/3 for that contributes nothing on defense is a modest payoff for a steep unmorph cost. That asymmetry is deliberate. In an environment where any face-down creature might flip into a combat trick, a flyer, or a board-swinging bomb, something has to sit on the low rung and stay credible. If every morph paid off big, the mechanic stops being a read and becomes a coin flip. So this one delivers a serviceable attacker when called and, more often, simply makes the unknown worth respecting. It is the filler that keeps the guessing game honest, the threat whose job is to be feared more than flipped.