Talk:Last Whisper/@comment-5077844-20130720071631/@comment-5756858-20131006233423

IMO, the reason for that are the penetration changes that were made at the beginning of S3 (flat pen kicks in after %pen) - most people tend to run a few arpen runes as well as arpen masterys.

So, if they dont have armor, the 40 ad, %pen, and additional flat pen will hurt them quite bad; and IF they get armor, it will STILL hurt them quite bad, as the %pen now gets more effective. It's good the moment you buy it, and it becomes better the longer the game goes on.

All for a measly 2300 gold.