Talk:Riven/@comment-112.205.36.245-20130203220111/@comment-2124153-20130204155020

Attack speed is better than no AS, and MS is better than no bonus MS, but these stats are not free. There's an opportunity cost, the cost is more AD, and that's why items like Zephyr and Ghostblade are noob traps on her. There are really only two approaches you can take when you itemize Riven:

There is no option #3. Zephyr is good on someone like Irelia, who is naturally AS-based (Hiten Style), needs more mobility (Bladesurge is her only gap-closer), and also wants tenacity/CDR.
 * AD-based, with a core of Bloodthirster and Black Cleaver.
 * Garbage.

The item that Riven wants, is a huge stat stick with massive AD and CDR on it. this item does not exist, so we make do with BT and TBC.