With a sword in the right hand and staff in the left, Battlemage can do melee attacks with exteneded range than other melee units. When melee attack get Critical Attack, Battlemage will get 100 mana, then he can release an Acrane Orb to the enemy.Batlemage has -5 Mana Regeneration Rate so he can only get enough mana to spell by Critical Attack, the mechanism is similar to the Destroyer of Undead in Warcraft III.
looks lovely!