Enhances Berserk reduces the defense penalty to 15% as long as the boots are equipped.
Boots can be removed and replaced to restore the bonus, unlike Warrior's Calligae and Warrior's Calligae +1.
Can be further augmented with Adds "Enhances 'Tomahawk' effect" via Magian Trial 4958
Appears to increase the special defense reduction of Tomahawk by about 1/64 per merit level (starting at 16/64).