Magique's biggest moment was when Empress Lilandra ordered some Guardsmen to get the Nega-Bands to help the war effort against the Kree. Magique went head to head with Quasar and used her illusions to make the Shi'ar strike team look bigger than it actually was, but then got knocked out by Doctor Minerva and her illusions fell apart.
During the next Kree/Shi'ar War, Magique was hunting the quantum mage Adam Warlock on behalf of the Imperial Guard after he assaulted the fleet. She placed a "witch-mark" on him, letting her track Warlock wherever he went, even Knowhere. Magique cast the "witch-mark" so that Shi'ar troopers could fire at Adam without missing, but Adam used his powers to manipulate the mark, moving it to Magique's body. The troopers' weapons fire was then guided to her, and Magique was seemingly killed.
Powers and Abilities
Magic: 3D illusions of no substance but incredible (or in this case perfectly credible) accuracy.
Her powers are apparently magic in nature.
- Most members of the Imperial Guard are analogs of DC Comics' Legion of Super-Heroes. Magique is based on Princess Projectra who was also three dimensional magical illusions.