One of the reason that i love this build is because doing fast damage Regen's your mana very quickly so you can keep cast spell to heal your team mates or to stun or even use your ultra. In this build you can use your ultra and start attacking the enemy because of your high attack damage you can Regen mana faster then it's lost let you use it much longer then normal. This keeps you healed and yet you release your rage upon your enemy team.

Hope you enjoy the build...