Glalie is a round Pokémon with what appears to be black skin. It has two large, conical horns on either side of its head and its skin is covered by ice. This ice recedes in certain places, revealing the black skin. Its eyes are an icy blue and it also seems to have teeth much like a blue whale's baleen plates. It also partly resembles a soccer ball.
Glalie tends to be mischievous. They can block paths in order to trap travelers that dwell into mountain tops or caves. Despite its physical disposition, Glalie are very loyal Pokémon. They are often misjudged by their unfriendly appearance.
Glalie is a predatory Pokémon. It captures its prey by literally freezing them in their tracks. They also may feed on the Babiri Berry.
Glalie's Ice Body causes it to recover 1/16 of its maximum HP at the end of every turn when it is hailing. If a non-Ice-type Pokémon acquires this ability, it will take no damage and still recover 1/16 of its total HP each turn during hail.