>>34250155>BugBug type + U-Turn + high attack + Fighting, Ground or Steel for second type is a very strong niche that has already sent Pheromosa and Genesect into Ubers on Smogon, keeps M-Scizor in OU forever until it receives Talonflame treatment and is something Jirachi and a few others wished it had.
>NormalSTAB Extreme Speed and Boomburst murder literally everything that doesn't resist them. Not the type's fault all mons with them are not Normal, shit or absurdly broken. One weakness also makes it very good for multipurpose walls like Chansey and Porygon2.
>GrassResists all three of Ground, Water and Electric while being SE against the former two which are very prevalent.
Ice and Rock are definitely the two worst ones, except for a few outliers that squeeze the most out of them or have broken characteristics not tied to their type.