Kaio-ken, Dragon Ball Multiverse Wiki

Kaio-ken ( Kaiōken, lit. "Realm King Fist") is a powerful amplification technique that multiplies one's capabilities in a single "heartbeat", thus increasing their power and speed and enabling them to inflict serious damage to opponents who are considerably stronger than them. Invented by King Kaio, Goku is the only person ever to use it successfully in most universes. However, the downside of the Kaio-ken is that it takes a heavy toll on the user's body, making them more vulnerable to enemy att

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