Suicune

Suicune is one of the most centralizing Pokemon in the UnderUsed metagame, and for good reason. Suicune has access to amazing natural bulk backed by a solid defensive typing, making it one of the sturdiest walls in the tier. Suicune's defensive qualities are further augmented by Pressure, an ability that allows Suicune to outlast a lot of Pokemon that would otherwise wall it with ease, such as Blissey. Suicune also has access to Calm Mind and Scald, as well as decent Special Attack and Speed, allowing it to have good offensive presence for a defensive-minded Pokemon.

Despite having so many positives, Suicune lacks access to reliable recovery, forcing it to rely on Rest for good longevity throughout a match. Suicune is also very reliant on its STAB attacks for damage, making it vulnerable to Pokemon that have an immunity to Water-type attacks, such as Dry Skin Heliolisk.