I don't see a point of going armor pen on adc when your playing from behind
The strength of these builds seems to be from snowballing. items that provide single stats that aren't dependent on other items like crit. IE and zeal items. i don't see a point of going ghostblade on adcs if you are from behind. if you get ghostblade its prob better to change your build to crit again. what do you guys think.?