Metang

While the other pseudo-legendaries' pre-evolved forms have seen occasional use in UU thanks to the scarcity of Dragon-types in the tier, Metang is truly an uncommon sight, and it's not too hard to see why. With substandard Attack and Speed stats and poor coverage on its STAB attacks, Metang has virtually no offensive presence. It even lacks Seismic Toss, which most non-threatening Pokemon often rely on for consistent damage. It is also almost entirely outclassed by Registeel, which boasts equal or better stats in every category and a similar movepool.

Metang does have a few perks, however, that save it from being entirely forgettable. Its excellent defensive typing grants it eight resistances, one immunity, and only two weaknesses. Its defensive stats, while not especially impressive, are respectable enough to take advantage of its typing. Most importantly, it has a solid support movepool that includes Reflect, Light Screen, and Trick, all of which Registeel lacks. Make sure to play Metang to these specific strengths, or it will be outclassed.