Aurorus

Aurorus has incredibly powerful STAB attacks that are accentuated by great coverage options in Earth Power and Freeze-Dry, making it quite difficult to answer defensively. Furthermore, it can use Rock Polish to negate one of its biggest weaknesses: lacking Speed. Beyond its offensive capabilities, Aurorus also has an amazing support movepool, using Aurora Veil, Stealth Rock, Encore, and Thunder Wave to greatly help itself and its teammates. Despite its Speed advantage over other wallbreakers like Golurk and Alolan Exeggutor, though, Aurorus is generally quite slow, exposing its horrible defensive profile and leaving it vulnerable to a multitude of revenge killers like Silvally-Steel, Tsareena, and Duraludon.