Talk:The Brutalizer/@comment-26655035-20151007114333/@comment-26231232-20160204232228

... That's not how stat efficiency works. You take the most basic item with the stat you want to calculate. For armour pen, it was the Brutalizer. You get the AD stat efficiency from the Longsword, and CDR from the Kindlegem. Add both, and subtract the result from Brutalizer's cost, and that's how much 10 armor pen is worth. Divide it by 10 and you have the value of 1 point of armour pen.