Element rates determine the multiplier effect on skill or item damage.
For example, if you have 200% element rate towards fire, any fire damage inflicted against you will be 200% effective, or double the damage.
Similarly, if you have 0% element rate towards fire, any fire damage inflifcted to you will be 0% effective, or result in no damage.
However, what happens if you have negative element rates? This means that you will actually absorb the damage! -100% element rate towards fire would mean you would absorb all of the damage, while -50% element rate means you would
absorb half of the damage.
This plugin allows you to specify negative element rates.
More information and downloads available at HimeWorks