Fiddlesticks needs a rework
Fiddlesticks is sitting at the absolute bottom of the junglers right now, but making him viable is, IMO, not the best idea right now. At least, not for his current kit. 3 direct target spells with low interactivity, and an ultimate that contains too much of his power budget. Bad design by this point.
I'd honestly like to see Fiddlesticks get reworked, though I'm sure there are others whose priority are going to put him at the bottom of the pile for the next year.