Piplup

Piplup has a niche as one of the few LC Pokemon that can both set up hazards with Stealth Rock and get rid of the opponent's with Defog, giving it decent role compression. It's also a Defog user that isn't weak to Stealth Rock, allowing it to switch in more easily. Supporting this are its decent defenses and good defensive typing, letting it take resisted attacks and some neutral ones. Its access to a Water-type STAB move in Scald lets it beat most traditional Stealth Rock setters like Onix and Dwebble. However, Piplup is extremely passive, making it setup bait for sweepers like Shellder and Calm Mind Spritzee. It is also forced into performing its predictable niche, as it's outclassed as a Water-type attacker by Chinchou and defensive Staryu due to their better Speed and movepools. Piplup has access to no recovery outside of Rest, making it prone to getting worn down over time. Finally, it faces competition from Kabuto, a Water-type hazard setter with Rapid Spin, Knock Off, and Weak Armor, as well from Slowpoke and Mareanie, bulkier Water-types with access to Regenerator and recovery.