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Hattrem is a small, pink, vaguely humanoid Pokémon with large, light blue hat-like hair with somewhat large, white spots on it. It has a pink extension that blends into white from the top of its hair, resembling the end of a witch's hat. Its hair ends in two braids, held together by a small, pink ring, which it usually stands on. It has two, thin arms lacking any digits, with a white spot on its chest. Its waist extends out into two lumps, with very small, light blue jointless and digitless legs. Its eyes have black sclera and a white pupil, with two pink dots for highlights.
Hattrem makes use of its braids as hands, pummeling foes to death with them. One blow from these braids would knock out a professional boxer. Hattrem will violently silence anything nearby with strong emotions.
In the anime
In the manga
In the TCG
This Pokémon was unavailable prior to Generation VIII.
Hattrem, Morgrem, and their evolutionary relatives can be considered counterparts. Both are Generation VIII Pokémon evolving from their pre-evolved form at level 32 then at level 42. Hattrem and its evolutionary relatives are female only, while Morgrem and its evolutionary relatives are male only. Their final evolved forms are both Fairy-type Pokémon with identical base experience and catch rates, and each Pokémon in each evolution line have the same base stat total as their counterpart (e.g. Hattrem and Morgrem both have a base stat total of 370). Both Pokémon are also based on mythical beings from European folklore and mythology: Hattrem resembles a witch, and Morgrem resembles a goblin. Furthermore, both Pokémon use their hair as a weapon.
Hattrem may be based on witches and witchcraft as a whole.
Hattrem may be a combination of hat and tremble.
Teburimu may be a combination of 手振り miburi (hand gesture) and brim.