Originally Posted by Drmikev
Active duration increases per AA up to a cap i cant remember at the top of my head.. And it doest have to replace the IE or PD i couldnt imagine playing an ad carry without those 2 items.. But it could replace per say the black cleave/LW i think?
Mostly of the times you will be hitting tanks (as long as the game progress and 5v5 fights breaks) with a lot of armor, you need those armor chunkers. Is not like YG is useless but the other 2 items brings a great damage output and more armor reduction/ignore.