Each element is superior or inferior to one another. ~ Fire < Light < Water < Darkness < Fire A superior element's attack on an inferior element: 50% additional damage. No element is always inferior to any other element and will receive 30% additional damage.
If the opponent has resistance to the same element, the damage to the opponent shall decrease by as much as the resistance is. If you have resistance, the damage a monster of the element of resistance does on you will also decrease.