Berserker

Berserkers are savage warriors. When in combat, they fly into a battle madness that makes them even more dangerous. A berserker fights normally until wounded. When first wounded, they undergo the battle madness. They gain +5 hit points and a +2 to all attacks, damage, and saving throws while in combat. After 1 turn this madness fades. They then lose the extra hit points, and drop dead if this brings their total below zero.