Giving it a higher ratio, would make champs (
< this guy especially) wayyyyyyyy to broken. He can proc the 4% with soooooo much ease. Combine that with his E, that makes you take more damage, his snare and his ult, that is a form of DoT, and it would be to easy.
is usally my 2 or 3 item (after Roa and Boots). This would give him, 160 ap, a bunch of health for his massive sustain, 30% magic pen, percent health damage on a top lane bully, and that is a perfect chance for riot to gut him.
The mistake that people make is to give this item to champs that should build full ap and such. I have seen
,
,
,
,
, even
build this, and for them , 50 ap sucks. They want the Magic pen, but 50 ap does nothing, and they will never use the passive as they are burst champs. What I suggest is that they make another item that build out of
, for these champs that want the magic pen, but do not use the passive of
that much.