Ultraman Orb Thunder Breaster is a powerful dark form of Ultraman Orb in the series Ultraman Orb. It is created when Gai Kurenai combines the powers of the Ultraman Taro and Ultraman Belial Fusion Up cards, resulting in a fierce, aggressive transformation with overwhelming strength. This form plays a major role during intense battles, but its unstable and destructive nature also reflects Gai’s inner struggle with power, control, and the consequences of relying on dark energy.