i personally didnt mind the idea at first, but after seeing it in game countless times, sry zero but i have to side with the guys here about it being an exploit.
i have seen it in my own eyes (mostly from "proud" players sending me their demos) of them being a 1 vs full team , and they end up planting the bomb and then shoot off any ppl that try to defuse it from distance, 1 by one, and knife them until either bomb explodes, the whole enemi dies, or the crow dies but the timer on the bomb is too short to defuse.
although the magician used to be a sucky class, just a step stone to get other classes, and was underpowered. and it costs money to buy the cloaks and shit, so i tried to "Exploit it" myself, and i noticed that collecting the money is unbelievably easy and even me, on a 10 year old crappy computer with 10 fps on average and a 20x sensitivity mouse blazing in all directions, i was able to solo 5 ppl and get out with a ~1.95 kdr that game... so i agree with the others that this class is the holy grail for noobs, and i strongly recommend that you try playing against this race when there are 1 or 2 of them on the loose, like when rev.maynard or brett or others jump on it, and then make a decision if u can kill them or not.
i strongly recommmend the claok does partial cloaking only, i personally dnt give a damn about the race, dnt like it whatsoever, and i can endure the pain of trying to kill those crows... but for the sake of the balance, these are my 2 cents.