Vanilluxe is a large icy, two-headed Pokémon that resembles a double-scoop ice cream sundae or a banana split. Most of its upper body is covered in a pure white snowy substance that resembles swirled scoops of vanilla ice cream. Each head has two ovular eyes with purplish pupils and a dark purple grinning mouth. It has many diamond-shaped icy blue crystals covering its upper body, located on the side of each of its eyes and two beneath each mouth. It has two short triangular arm-like ice crystals on either side of its mid section, and three conical icicles beneath its body. The icicle in the middle of its lower body is the largest of the three. Vanilluxe has a hollow straw-like appendage on top of its left head from which it emits puffs of freezing air. On the back of its two heads are many tiny blue ice crystals that form a pattern.
This Pokémon consumes large quantities of water, which it stores inside its body and creates internal snow clouds. When angered, it will spew out the snow clouds and blast violent blizzards at its opponents. Vanilluxe appears to be an unstable, moody Pokémon, despite the grins on its faces.
By consuming mass quantities of water, Vanilluxe can create fierce blizzards inside its body.