U.A. Locker Room

The U.A. Locker Room card was introduced in the Phantom Rage booster set, released in late 2020. It serves as a support card for the U.A. (Ultra Athlete) archetype, a sports-themed series of Earth-attribute Warrior monsters that debuted in the Duelist Alliance era. The archetype is defined by a unique tag-out mechanic that simulates players rotating on and off a field during a professional game, and this specific spell was designed to provide the team with necessary defensive stability and resource replenishment.

The design of the card leans heavily into the sports-team aesthetic common to the U.A. set, featuring imagery that suggests the behind-the-scenes camaraderie and recovery period of the athletes. As a common rarity card, it was produced as a functional utility piece rather than a centerpiece of the set's market value. Its reception among the player base has remained modest, valued primarily by enthusiasts of the U.A. deck for its ability to recover discarded monsters and boost the life points of the user.