Arcane Barrier

Envelop yourself in a shield of arcane energy. Grants Arcane Barrier for 8 seconds. Arcane Barrier
Reduces all damage taken by 30%.
Deals Arcane damage to attackers.
Applies a stack of Arcane Instability to attackers. Arcane Instability
Unleashes a nova of arcane energies upon reaching 6 stacks, dealing Arcane damage.