Multiweapon Fighting
( Monster Manual v.3.5, p. 304)[Monster]
A creature with three or more hands can fight with a weapon in each hand. The creature can make one extra attack each round with each extra weapon.
Prerequisite
Three or more hands,
Required for
Greater Multiweapon Fighting (DD) , Greater Multiweapon Fighting (SS) , Improved Multiweapon Fighting (DD) , Improved Multiweapon Fighting (SS) , Multitasking (SS) , Multiweapon Rend (EL) , Perfect Multiweapon Fighting (EL) ,
Benefit
Penalties for fighting with multiple weapons are reduced by 2.
Special
This feat replaces the Two-Weapon Fighting feat for creatures with more than two arms. The Multidexterity feat further reduces penalties for off-hand attacks.
Normal
A creature without this feat suffers a -6 penalty on attacks made with its primary hand and a -10 penalty on attacks made with its off hands. (It has one primary hand; all the others are off hands.) See Attacking with Two Weapons in Chapter 8 of the Player's Handbook.