It sounds like you are envisioning a fusion of several distinct universes: the mystical Nordic , the high-energy martial arts world of Dragon Ball , the massive 3D arena combat of Sparking! ZERO (the upcoming Budokai Tenkaichi sequel), and the archetypal Hero of Justice .
Here is an original text that weaves these concepts together into a single character profile and scenario. Alias: The Futhark Fist Signature Phrase: "By the Runes of Old and the Spark of Zero—Justice is Absolute!"
"In Sparking! ZERO , there are no second chances. Hero of Justice, Firing. "
The Rune-Dragon does not dodge. He lets the purple light wash over him. It fails. Ginyu screams as the runes on the Dragon’s chest burn his own psyche.
He detonates his entire Ki bar into a single, screen-filling explosion of rune-lasers. The Ginyu Force is not killed—they are turned into small, harmless wooden rune tokens that spell out "F-A-I-L-U-R-E."
"The runes do not recognize your 'legend.' A legend that destroys without purpose is merely a calamity. And every calamity... has an opposite. I am that opposite. Sparking! ZERO! JUSTICE BEAM! " Scenario: The Rune-Dragon vs. The Ginyu Force The battle takes place on Planet Namek, but altered—the ground is covered in frost and Viking runestones.