Ekans

Ekans carves itself a niche in LC as the only viable Coil sweeper, and it has quite an offensive presence after Coil boosts. Its expansive movepool includes many coverage moves like Earthquake and Sucker Punch to hit specific threats as well as utility options like Glare, and its typing grants it resistances to common Fighting-type moves as well as Fairy- and Poison-type moves, allowing it to check Pokemon like Timburr, Mienfoo, Spritzee, and Foongus. Furthermore, Ekans has great abilities in Intimidate, which lowers the foe's Attack, and Shed Skin, which can cure Ekans of status, easing its setup opportunities. These traits allow it to function well on offensive teams. Unfortunately, Ekans is fairly weak without Coil boosts, meaning it is easily played around. Ekans's main STAB move, Gunk Shot, has very low PP, so it has to worry about that when sweeping. Its typing leaves it vulnerable to common Ground-types like Diglett, which can trap and OHKO Ekans, as well as Mudbray and Onix. Ekans also is somewhat slow, so its sweeps can be stopped by fast, powerful attackers like Gastly and Abra. Lastly, Ekans faces competition from other Poison-types like Alolan Grimer and Croagunk, with the former having Poison Touch, Knock Off, and a better typing and the latter having a better typing, more setup opportunities, and greater power.