Talk:Twitch/@comment-205.238.209.157-20120714164327/@comment-4929329-20120714183531

It's not about being a "broken aspect" that it got lowered THAT much. Riot wanted Twitch to be more than his Q and R buttons, but to buff his other skills meant lowering his stealth duration.

Also, they didn't like him roaming, they wanted him to be a tactical carry, so it gives a movespeed boost during its duration to help. It DOES help, quite a lot if you think about 20%ms boost for 8sec during stealth.

If you look at other carry abilities, like Quickdraw, you notice that they share somewhat similar CDs, except Twitch has his ult to take up the spare time whereas graves autoattacks.