Donphan

With sun's decreased viability following Dugtrio's ban, Donphan is no longer viable. While Donphan may have access to a workable support movepool, solid Attack and Defense stats, and the ability to switch into common Pokemon such as Tyranitar and Garchomp, these traits aren't enough for it to establish a niche. Excadrill far outclasses it as a spinner with its additional Steel typing and an ability to better pressure crucial Pokemon such as Jellicent and Reuniclus. It even struggles to find a place on modern sun teams, as most players instead use Xatu for its Magic Bounce and ability to preserve momentum with U-turn.