Ducklett

When compared to other powerhouses or defensive tanks that share similar traits to Ducklett, such as Vullaby, Chinchou, or even Mantyke, Ducklett seems helplessly outclassed, sporting neither outstanding offensive stats nor a considerable amount of bulk. However, it does have some key traits that distinguish it from its other Flying- or Water-types. One of these is its good typing, which gives it some helpful resistances to Fighting, Ground, and Bug. Its typing also grants it an uncommon neutrality to Ice and Grass, making it a decent check to the ever present Snover. It also has a fair support movepool and usable stats, letting it support its team as either a bulky physical tank or an anti-weather support Pokemon. Additionally, it boasts access to the coveted Roost, a recovery move other walls only wish they had. Still, it has a crippling 4x weakness to Electric and 2x weakness to Stealth Rock, making it tough for Ducklett to switch in and support its team with Feather Dance or Rain Dance when needed. It's also fairly slow, weak, and not outstandingly bulky, so it cannot stand up to some of the tier's stronger attackers. Its niche is very specific--unless your team desperately needs a weather counter or a good Fighting-type check, Ducklett may be outclassed. However, it does fill a few specific niches, and it fills them well.