Lanturn

Lanturn is blessed with unique and valuable typing in a metagame full of Water-types. Its resistance to Water and Ice alongside its access to powerful STAB Electric-type moves makes it uniquely well positioned to take on common foes like Slowbro, Slowking, and Blastoise, and the threat of STAB Surf deters the usual checks to Electric-types, such as Nidoqueen and Piloswine. Its high HP, decent Special Defense, and lack of weaknesses to specially offensive types aside from Grass allow it to feasibly take on almost any special attacker, including powerful Psychic-types like Mr. Mime and Kadabra if needed. However, its weakness to Ground prevents it from switching into Ground-types despite being a bulky Water-type, and its middling Special Attack stat means it can struggle to threaten bulkier foes that are not weak to its attacks, such as Quagsire, Ampharos, and Hypno. Furthermore, Grass-types like Bellossom and Victreebel resist both of its usual attacks and can force Lanturn into a purely defensive role, in which it does not excel.