Gastrodon

Gastrodon is a very reliable defensive Pokemon thanks to its amazing typing, ability, and access to reliable recovery. This allows it to check common threats such as Lycanroc, Aggron, and Choice Specs Jellicent and block Volt Switch from the likes of Lanturn. However, its typing also leaves it weak to rather common Grass-types such as Roselia and Victreebel and Grass-type coverage moves from the likes of Eelektross. It also suffers from being passive and lets threats such as Drampa and Lurantis in almost for free, as they only fear a potential Toxic. Furthermore, Gastrodon is extremely prone to getting worn down via Toxic, forcing it to use Recover more often. Finally, Gastrodon suffers from competition from other Ground-types such as Mudsdale and Torterra, which are bulkier and have access to Stealth Rock, and Jellicent, which has much more stallbreaking utility.