A Lamprey is an eel-like jawless fish with a funnel-shaped sucking mouth lined with many sharp teeth. A lamprey attacks by boring into its prey with these teeth and latching on, dealing the given damage on the initial attack and causing 2 points of damage per hit die of blood loss damage each round thereafter, until the victim or the lamprey is dead. Pulling a lamprey loose without first killing it requires a standard roll to open doors, and if successful the victim suffers damage equal to being bitten again due to the tearing loose of the lamprey’s many teeth. This does not substantially harm the lamprey, which will immediately attack whoever pulled it loose.