Thread:Double Slap/@comment-3017217-20150501142244/@comment-3017217-20150503183241

Noone would buy Flat Penetrations.

The Penetration runes which are already in a bad spot will be sent into oblivion.

0.99 ^ -11.4 = 1.12139542921

The oportunity cost for these 19 Pen is 15 AD

Or 15 / 0.12139542921 = 123.563136583

Althought there are champions with more Base AD at level 18(Cho'Gath Skarner Sion Kassadin and Mega Gnar) and if you intend on doing physical damage you are expected to build more;

Runes are at their Peak when you lack items.

15 / 0.20810894815 = 72.0776311319