 
  BERSERK is a command usable by fighters only.  When a fighter goes berserk,
  the following things happen.
  The fighter attacks evryone he wasn't protecting when he went berserk.
   He gets a boost to his fighting abilities.

  When Berserk wears off the fighter takes a hit to his constitution.
   BERSERKING TOO OFTEN WILL KILL YOU.
   And loses the bonuses.

Notes:
People being protected are not attacked.
There are three levels of "berserkedness" 
  Type berserk again to get more aggravated. It lasts longer, does more damage and costs more.
 
 Syntax: berserk
