Concept matchup. No Batman x Flash render yet. Images show other fusions featuring each character.

Batman x Flash Fusion

Gotham's shadow meets Central City's lightning. This fusion blends the world's greatest detective with the speed of sound, creating a hero who can solve crimes before they happen and punch faster than the eye can track.

Design

The costume is a sleek, aerodynamic suit of dark navy and electric yellow. The silhouette is low-profile yet suggests immense velocity, featuring lightning bolt motifs along the limbs. The cowl is streamlined, incorporating a speed-force conduit, and the utility belt is redesigned to hold temporal energy cells rather than standard gadgets.

Powers

Batman's intellect and martial arts combine with Flash's connection to the Speed Force. The fusion can move, think, and react at superhuman velocities. A unique ability, Chrono-Trace, allows the hero to leave brief, tangible traces of speed in the air, creating momentary solid platforms or barriers for tactical advantage.

Weakness

The Speed Force connection can be unstable, and overuse risks the hero becoming trapped in a time loop or losing his grounding in reality, while the detective's gadgets are often useless at such speeds.

Batman vs Flash: who wins?

In a race or speed-blitz scenario, the Flash genetics ensure victory. However, in a battle of wits or setup traps, Batman's preparation could theoretically corner the speedster, though escaping is nearly impossible.

Fusion name ideas

• The Fastest Detective
• Shadow Flash
• The Blue Streak