Weavile is a bipedal, weasel-like Pokémon with a pale, gray body. It has a bright red crown and collar made of wide feathers, and a single, thinner feather on each ear. The ear feathers are smaller on a female Weavile. Weavile has two tail feathers and three claws on each paw. There is a yellow, oval marking in the center of its forehead. Its eyes are red with three eyelashes, and four fangs protrude from its upper jaw.
Weavile live in snow covered areas and are notorious predators. Weavile is famed for its speed and agility. A scratch from Weavile's sharp claws can leave behind traces of frostbite. Weavile often hunt in packs for prey such as Alolan Sandshrew and larger species like Mamoswine, then divide up the prey amongst themselves. Weavile can communicate by carving patterns into trees, ice, and boulders, with over 500 distinct signs recorded.
Another Weavile appeared, during a fantasy of a story from the past, in The Redemption, under the ownership of a soldier. It was one of the many Pokémon fighting in the great war of Kalos 3,000 years previously.
Weavile physically debuted in Team Galactic's Conspiracy, Revealed!!, under the ownership of Cyrus. He sent out Weavile to battle Hareta, who fought back with his Piplup. Weavile proved to be a very dangerous opponent, even blasting Piplup off the bridge (where the battle took place) with its Hyper Beam. However, Piplup was able to use its Torrent to turn things around and defeat Weavile with a powered-up Surf.
In the Pokémon Mystery Dungeon: Explorers of Time and Darkness manga
When Weavile is released from a Poké Ball, it dashes from side to side and uses False Swipe. It also dazes the opponent.
"A Sharp Claw Pokémon. The crown on its head resembles a fully opened folding fan. Its sharp, hooked claws and outstanding speed are its most memorable features. It's one of the Pokémon that can be expected to perform well in the front lines of a battle. There are many Trainers who teach it the TM False Swipe and travel with it to catch rare Pokémon."
No other Pokémon has the same typecombination as Weavile and its pre-evolved form.
Weavile can be seen as a parallel to Gliscor. Both of them are dual-types, have the same base stat total, have double weaknesses (Gliscor to Ice, Weavile to Fighting), evolve from Pokémon that were introduced in Generation II, and do so by leveling up at night while holding items that contain the word "razor" (Sneasel evolves with Razor Claw, whereas Gligar evolves with Razor Fang).
Weavile may be based on the kamaitachi, a type of yōkai often represented as weasel demons with sickles on their front legs and sometimes understood as the cause of mysterious cuts on the skin, especially in cold weather. It also shares some traits with cats and weasels. Its appearance may be based on old Egyptian fashion, as it includes what resemble a headdress, collar, and earrings similar to what Egyptian deities wear. Its "eyeshadow" also resembles Egyptian makeup.
Weavile may be a combination of weasel, weave, evil, and vile.
Manyula is a combination of 魔 ma (demon), 潜入 sennyū (sneaking in), and 鼬 yū (weasel, an alternate reading of itachi). Nyu itself may be a combination of ニャー nya (the sound a cat makes) and 鼬 yū.