There are researchers who believe this Pokémon reflected like a mirror in the distant past.
– Pokemon Platinum Pokedex
Bronzor looks like a floating disc. It’s interesting that it has a pattern on the back. It’s one of those Pokemon based on inanimate objects rather than animals.
Its typing Steel/Psychic means it resists most types and is only weak to Fire and Ground. And its abilities Levitate or Heat Proof can either nullify its weakness to ground or reduce its weakness to fire. Stat-wise, it has lots of Defense and Sp Defense. That, combined with its typing and its ability to learn Light Screen and Reflect, makes Bronzor’s family a popular defensive wall.