Thunder (Black Magic)

You draw a spark from the Air Crystal, lashing out with a jagged arc of electricity. A creature in range must make a Dexterity saving throw. On a failed save, the target takes 2d8 + 1d6 Lightning damage. On a successful save, it takes half as much damage.

This spell can be purchased from the Black Magic shop in Cornelia for 100gp.

Can be cast by Black Mage, Black Wizard, Red Mage, Red Wizard and Ninja Job Classes.