Elemental damage can be dealt by weapons, magic, or skills that are imbued with different affinities to turn the tide of the battle. There are a total of eight elements, namely fire, ice, lightning, water, wind, earth, dark and light.

Elemental damage can be dealt by both physical and magic attacks.
An example of elemental physical damage would be Lightning's Ice Blitz. This attack alone deals ice damage, but when equipped with a light elemental weapon such as Excalibur, it will deal both ice and light elemental damage at the same time.
Magic elemental damage, on the other hand, can be dealt by casting magic such as fire, fira, firaga, etc.

Becoming familiar with elemental properties in battle is essential to achieving victory. You can view your foe's elemental weaknesses by using Analyze or the white magic Libra.