Help on spell mana storm

Current upkeeper: Pickett
Casting time    : 5
Spell cost      : 1
Spell type      : offensive (area)
Spell words     : Rhaaaaaaaaaaaaaaaaaazakaboooooooom!
Affecting stats : Int, Wis, Lvl
Affecting skills: Arcane power, Energy focus
Affecting spells: Mana storm
With this spell a powerful mage can summon forth a volley of fiery skulls
from the deepest pits of the netherworld and launch them around the mage.

Mana shield < List > Mana transfer