Primal Druidry [Formerly Storm and Spirit]

Shoot a replicating projectile at an enemy, dealing 0.5x arcane, lightning, and soul damage to each enemy chained to.

"Each cast of this spell increments a buff on you by one. This buff increases your arcane, lightning, and soul powers,
 as well as your spell haste per stack by 2%. At the end of this buff, you perform a nova of these powers combined (0.45x),
 removing one stack, and refreshing its duration until it has no more stacks. The duration is affected by spell haste.