Talk:Riven/@comment-76.126.209.24-20130305035525/@comment-2124153-20130305041057

Depends on the CC.

If the CC is supression-based, like Malz/Warwick/Skarner, the Scimtar is the only solution to the problem. Scimitar is also good if there is only a single devastating shot of CC that you're worried about, and the enemy team has a lot of magic damage, since the AD on it is fairly good and the MR is useful. If the CC is knock-up or re-position based, there's nothing that you can do about it really. If you're worried about slows... stop worrying, because Riven is dash-based anyway.

If the CC is tenacity-based hard CC like stun/bind/silence, you may want to either get either the treads, or go down the Defense tree. In some cases you want to do both. You can replace the CDR lost from Ionian by running flat CDR Glyphs (5.85% CDR total) instead of MR or MR/lvl; the MR from Merc's will make up for it vs. burst damage. I run tenacity-based pages/builds when I am facing a LOT of spread-out CC from the other team, such that there is no single worst threat but a lot of little CCs in a row (consider running against a team with Kennen and Amumu on it, for example).

Failing all that, don't forget about Cleanse. It hurts your killing power in lane, but directly counters both Ignite and Exhaust, a lot of other champion CC, and gives you 65% Tenacity for 3-4 seconds after activation (which is not only better than Merc's, but it's all the time that Riven needs to close on a squishy target).