How is Fiddlesticks not a Battle Mage?
The definition of a Battle Mage:
Battle Mages get into the middle of the fray, seeking to wreak havoc upon the entire enemy team with their overwhelming sustained area damage. Due to their relatively short (but not melee) combat ranges and the need to burn down their opponents over time, Battle Mages have significant defensive capabilities that range from sustaining endlessly to literally defying death for a short period of time.
Fiddlesticks wants to be in the middle of a fight when he gets Crowstorm off. He has a shorter range. He burns down enemies with Drain and Crowstorm. He can silence and fear enemies to defend himself when needed.
Why is he listed as unique when he easily fits in with the battle mages?