This species reached its zenith during the period known as the ice age. I suspect that Hisui's frigid climate is in harmony with Mamoswine's constitution, thus awakening hidden potential.
Mamoswine is an Ice/Ground-type Pokémon. It takes double damage from Fire, Water, Grass, Fighting and Steel, resists Poison, and is immune to Electric. Its base stats add up to 530: the highest is Attack (130) and the lowest is Special Defense (60).
It is the third stage of its evolution line, along with Swinub and Piloswine. Its abilities are Oblivious and Snow Cloak, and its Hidden Ability is Thick Fat. It is in the Field egg group and can breed with 277 species. In Scarlet and Violet it learns 16 moves by level-up and 52 by TM.
BASE STATS
ABILITIES
The Pokémon is oblivious, keeping it from being infatuated, falling for taunts, or being affected by Intimidate.
Boosts the Pokémon's evasiveness in snow.
The Pokémon is protected by a layer of thick fat, which halves the damage taken from Fire- and Ice-type moves.