>>23306603depends.
as a spiker? because there is ferrothorn
as an ice type setter in general? there is mamoswine
as a fast speedy taunter/t-waver? literally a million mons in ou can do that
as a destiny bond user? you're right it's a one-trick gimmick on a strong pressured game like ou
the fact that froslass can do something m-banette - a mega - does and relies on to be the least decent, while many more things makes it good, just not amazing. still it's a very underlooked pokemon, and certainly better than a lot of things in uu right now
i see froslass as ou's venomoth. it's amazing with a proper team to back it up, so much that it was banned from it's current tier, instead of banning everything else