Talk:Riven/@comment-116.75.5.74-20120522095303/@comment-2.121.18.159-20120522214924

Never get any flat ArPen on Riven from either runes or items. Such a waste as flat ArPen doesn't actually counter your opponent building extra armor, % ArPen does.

Plus Riven gets such a huge benefit from AD - on a champ with ratios as high as hers you need to stack AD. Get Last Whisper after your Bloodthirster and Guardian Angel to counter their armor as it will only be a problem late game.