Goldeen

Goldeen has a fantastic ability in Lightning Rod, allowing it to be a great check to Electric-types such as Chinchou and Magnemite; it can also directly threaten them with Drill Run, making it one of the best stops to Volt Switch in the metagame. Its Water typing provides it with useful resistances to Water-, Ice-, and Steel-type attacks, which are commonly run as coverage by LC's premier Volt Switch users. Goldeen's movepool has useful options such as Knock Off, Megahorn, and specifically Bounce, which can be used alongside a Flyinium Z to let Goldeen lure in and KO Grass- and Fighting-types. Goldeen's good Attack and Speed allow it to put some offensive pressure on the opposing team. However, Goldeen generally faces competition as a physically offensive Water-type from the likes of Corphish, which has extremely strong STAB attacks thanks to Adaptability and access to Dragon Dance and Swords Dance, and Carvanha, which hits harder, more consistently breaks through Grass-types, and has Speed Boost to outpace normally faster Pokemon. Goldeen's bad bulk also doesn't help its case, as it takes massive damage from powerful neutral hits and will almost always get OHKOed by super effective attacks. Finally, Goldeen lacks a good way to hit bulky Water- and Flying-types as well as Grass- and Fighting-types after Supersonic Skystrike has been used up, meaning that it can be walled fairly easily by Pokemon like Timburr and Foongus.