Frenzy is an ability in the Dragon Quest series. The attacker completely loses it and starts on a random (possibly allied) target for double damage.
Frenzy is used by monster companions such as the hoodlum. Note: if a target is immune to whack, then the skill will miss every time. Additionally, the user will never target themselves even if they are the only member of the party currently active. With proper defensive measures and set up, Frenzy can obliterate even the most powerful encounters.
Frenzy deals double damage, but unfortunately the target is any random friend or foe. It is obtained by advancing to rank 6 of the Warrior vocation. It has lost the death attribute from V and can now strike metal slimes.
Frenzy was learned via reaching rank 5 of the Gladiator in the PSX version, but was removed outright in the 3DS remake.