An energy ball is an ability used offensively in the Yu-Gi-Oh! ZEXAL anime. The user creates a medium-sized to large-sized energy sphere with a color determined by the wielder. Hart Tenjo was able to create an energy ball around him and make it grow larger. Vetrix was later capable of doing so with the power he stole from Hart. Later in the series, the Barian Emperor Mizar produced energy balls to use as weapons, though they did not cause permanent harm. He also generated a red energy ball upon arriving on Earth from the Barian World, a variation that was later used by Vector.