Vesper Primer+Standard Actions+Dizzying Combination

Sphere: Dual Wielding
-4 (1 minute)

Whenever you use an attack action and successfully strike a single creature with both your main-hand and off-hand weapons before the start of your next turn, that creature must make a successful Reflex save or take a -2 penalty on Reflex saves and have all movement speeds they possessed reduced by 10 ft. (minimum 0 ft.) for 1 minute. At +10 base attack bonus, this penalty is doubled. Any action that would remove the battered condition also ends this penalty.