While in spiked armor, you are a bristling storm of needles.
Prerequisites: Str 17, Proficiency with spiked armor, Cactuar Style, Cactuar Bristles, BAB +5.
BENEFIT
While in Cactuar Style and wearing spiked armor, your spiked armor deals damage as if it were one size larger and now deals damage if any creature attacks you with any non-reach melee attacks.