So this skill is a powerful holy-style magic.
When used, it creates a glowing white runic-looking circle around the caster. Shortly after, about 1.5 seconds, a huge flash of white light is unleashed, dealing significant (roughly 1.5k to an unarmored level 20, assuming level 1 skill). To get this skill, you must have Mage Bomb level 6 (if mage skill) or Flare level 5 (if cleric skill).
10 second cooldown, 5 levels.