Dual-Wielding/Two-Handed Penalty

When dual wielding or using a two handed melee weapon(double-bladed), you take a penalty to Attack. If you are not using a balanced weapon in your off-hand (or using two-handed), you will incur another -2 penalty to attack.

No Two Weapon Fighting
Attack: -8

Tier One Two Weapon Fighting
Attack: -6

Tier Two Two Weapon Fighting
Attack: -4

Tier Three Two Weapon Fighting
Attack: -2