The Centipede is a blue centipede-like creature with sixteen legs and nine horns on its back. It has two enormous black eyes and a mouth that resembles a bunch of tentacles. It has pincers on its tail. It bears some features that normal centipedes don't have, such as sky blue skin.
The Centipede is possibly based off the Dungeons and Dragons monster, the Carrion Crawler, just like how its summoner, the Dimension Wizard, is based off the Xorn.
The centipede's Model Sheet
The centipede dissipating
The Carrion Crawler, possibly what the Centipede is based off of