Surge+

In game description- "Provides a massive surge of devastating attack power. Hrrgh!"

This is very powerful for the fighter because,

this makes attacks insanely damaging.

This can be great for attacking enemies,

and gets better when you LV it up.

Since this is an auto-ability you may equip up to 4 total.

Since this is an auto-ability it activates automatically.

If a Weapon says Surge+ +Value then it's base LV increases by that amount.

You may upgrade this at the Mojo-Dojo.

Apparently you get +60 ATK once on LVL.9 from sources.