Name: Arch Wizard
Cooldown: 3 s
Every X attacks, cast a lightning bolt that chains up to 4 creeps, dealing 100% damage.
Every Y attacks, throw a fire ball at the target creep, dealing 200% bonus damage to creeps within 1 range.
The scaling amounts could change, but I'm thinking X and Y could be around 3 and 5. This means his spells do about half of the total damage. This might mean the base damage needs to be reduced slightly to balance the tower