Type: Monstrous
Sources: Deities and Demigods
Epic Level Handbook
Savage Species
A creature with three or more arms can fight with a weapon in each hand. The creature can make up to three attacks per round with each extra weapon.
Prerequisite: Dex 19, three arms, base attack bonus +15, Improved Multiweapon Fighting, Multiweapon Fighting, Multidexterity
Benefit: You may make up to three attacks with each off-hand weapon that you wield, albeit with a -10 penalty on the third attack with each such weapon.
Special: This feat replaces the Greater Two-Weapon Fighting feat (originally presented in Masters of the Wild) for creatures with more than two arms.