User blog comment:Qwertyfatcat/A different look on Crit/@comment-24087642-20140211044250

There's a difference between fiddlestick's old passive sort of luck, which makes enemies randomly miss, than crit chance sort of luck.

With fiddlestick's passive, if you randomly miss a cs, too bad, there's nothing you can do about it, except smash your face on the keyboard.

With crits, if you get struck by a crit, you suddenly need to GTFO OUT OF THERE!! Some randomness is good for a game, although I'm not sure if that's the case for crits, since you generally won't have time to react.