The Gloomix takes the form of a glowing necklace or wrist cuff with a single gem on the end. The Trix receive the Gloomix from Darkar, and use it. So far, the only known witches to earn this are Icy, Darcy, and Stormy. At the end of Season 2, when Darkar betrays the Trix and sends them to Oblivion, they merge together into the Mega Trix and three more Gloomix can be seen on them: a yellow zone and two green leg bracelets.