>>21149594Honestly most Champions haven't had type specialties anyway, so Rock is unlikely not so much because it's Rock but because they're probably going to keep doing mixed-type Champion teams more often than not.
That said, the person who mentioned Steven has a point. Although Steven's designated specialty is Steel, only three of his six Pokémon are Steel-type, the same number of which are Rock-type. Hell, his PWT team in BW2 actually has more Rock-types than Steel-types.
