Multiweapon Fighting
(Monster Manual II, page 18, DnD 3.5)
[General, Creature]
A creature with three or more hands can fight with a weapon in each hand. It can make one extra attack per round with each weapon.
Prerequisite
Three or more hands
Benefit
Penalties for fighting with multiple weapons are reduced by 2.
Special
This feat replaces the "Two-Weapon Fighting":feats/players-handbook-v35--6/two-weapon-fighting--2998/ feat for creatures with more than two arms.
Normal
A creature without this feat takes a -6 penalty on attacks made with it's primary hand and a -10 on attacks made with it's off hands. (It has one primary hand, and all others are off hands.) See Attacking with Two Weapons, page 124 in the _Player's Handbook_.