fiddlessticks has a nice bug where he the cooldown on his heal starts after pressing the button. I just had a match where fiddlesticks literally sat there using heal after heal after heal with no cooldown on it at all. this needs to be fixed.
If you don't want him to spam his Drain on you, interrupt him or break the tether. His Q and E both have longer level 5 CD's than his level 1 W (drain), which means he can't spam prevent you from stopping him.
Its intended If you have enough cdr Your W cd is back while you are still channeling W
