Way of Light
Black Fire - Send a flaming projectile in front of you that hits for 2 hearts of damage.
Cast Time: Instant
Cooldown: 6 seconds
An instant cast time and a short cooldown make Black Fire one of the best projectiles in the game. A smart mage would take a reliable projectile like Black Fire and pair it up with a secondary ability based on survival. By now, you have many choices for secondary abilities at your disposal. In a free-for-all battle you'll have no ally to protect you. Consider taking abilities like Temporal Shatter or Wreath of Flame to help put distance between you and the fray.
Leads to: Devout or Archmagus