A low-level telekinetic magnet, Debrii can move small objects around at a limited range. Though each object must be small, she can move many objects, to create debris storms, or form a “body” of debris around herself, strong enough to smash through concrete walls. She can levitate a short distance off the ground.
Deciding the New Warriors reality TV show's demographics needed added conflict, the studio recruited Debrii, an argumentative telekinetic. She joined the team in NuPonder, Minnesota, as they attempted to ambush Terrax. Debrii made a dramatic debut just as the Warriors were closing the trap, blasting Terrax with a garbage storm which also engulfed her allies; in the confusion Terrax escaped. Team leader Night Thrasher ordered Debrii and Microbe, another recent recruit, to stay behind while the others pursued Terrax, but Debrii followed anyway. The senior Warriors tracked Terrax to the NuCar Automotive Plant, exposing him as a robotic simulacrum controlled by the Mad Thinker's Intellectual Robots (Einstein, Freud, Woolf and da Vinci). Meanwhile Debrii and Microbe arrived at the plant, evaded robotic guards, and found a storage area full of robot parts. Forming a huge humanoid shell around herself, Debrii smashed through the plant, soon demolishing Einstein, da Vinci and Freud. After fighting the Corruptor, the Warriors learned their show had not been picked up. The team disbanded, with Debrii accepting a lift back to New York from Nova (Richard Rider).
After several New Warriors were apparently killed along with hundreds of innocent bystanders in the Stamford disaster, Hindsight Lad revealed Debrii's secret identity on an anti-New Warriors website. Targeted by a mob, Debrii went underground, later joining Captain America's Secret Avengers.