A piranha-like fish found mostly in tropical regions. They are not caught with the fishing profession (except for Loch Frenzy) but actually are hostile beasts that reside in the water and may attack you when you are going for a swim. Depending upon the zone, their level can range from around 12 to 70 elite.
Frenzies are voracious, toothy fish. They attack any prey with ravenous hunger. Frenzy can locate creatures underwater within a thirty-foot radius by sight. This ability, of course, only works when the frenzy is underwater. A frenzy can notice creatures by scent in a 180-foot radius and detect blood in the water at ranges of up to a mile, much like real-life sharksTemplate:Cite
Players that win first place in the Stranglethorn Fishing Extravaganza can receive a trinket, the 
[Hook of the Master Angler], which allows them to transform into a frenzy.
[Soft Frenzy Flesh] becomes 
[Fillet of Frenzy] when cooked.
Notable frenzies
List of frenzies by level
- Loch Frenzy - Loch Modan
- Reef Frenzy - Silverpine Forest
- Whitetail Frenzy - Ghostlands
- Muck Frenzy - The Barrens
- Coastal Frenzy - Darkshore
- Lake Frenzy - Silverpine Forest/Alterac Mountains
- Sharptooth Frenzy - Stranglethorn Vale
- Sawfin Frenzy - Swamp of Sorrows
- Hooktooth Frenzy - Zul'Gurub
- Canal Frenzy - Ruins of Ahn'Qiraj
- Mudfin Frenzy - Zangarmarsh
- Underbog Frenzy - The Underbog
- Coilfang Frenzy - Serpentshrine Cavern