Hammerhead (Earth-21: Post-Crisis)

Hammerhead is one of the alters created when Kay Challis developed dissociative identity disorder. While in The Underground, Hammerhead appears as a bald woman with a skull tattoo on her chest and a scarred lip.

Powers

 * Superhuman Durability: While fronting, Hammerhead appears to be able to withstand great force and endure attacks that normal individuals would feel pain. She also seems to not have any visible injuries despite punching hard materials with her bare fists.
 * Superhuman Strength: When Kay Challis was experimented on, Hammerhead gained the ability to exert great strength from her bare hands, capable of sending Cliff Steele's robotic body flying backwards.

Abilities

 * Hand-to-Hand Combat: Despite able to exert great strength, Hammerhead does not only rely on her abilities but rather learnt how to combat individuals, making her a keen combatant.