here is a good way to buff crit carries.
decrease the insane price tag on IE. lethality based carries will get 2 lethality items before you finish that shit even if you rush it, and it still wont be nearly as effective because you need atk speed and additional crit to even make use of it.
people talk about snowballing, but getting a 
and 
before you finish IE is pretty stupid. and what makes it worse is most people DONT rush IE, but its a necessary item for any crit build.
