User blog comment:Kait-zero/The Stealth rework, why Evelynn needs it but Twitch doesn't/@comment-4636093-20120327164716

Twitch nees ballancing because of his playstyle. It was mentioned in a blog post a while ago exactly why.

The problem is that people can't observe Twitch, so they have no idea how he plays. Is he camping right next to you pondering whether to engage? Is he even there in the teamfight at all?

The stealth remake will let stealth be less of an obstruction to fight against, by creating pockets of where Twitch/Eve cannot be. This will let his opponents have much more of an inkling that he may be walking around his team during the siege or not because he will pop in and out of stealth occasionally if he's there.

This is indeed a nerf to stealth so both champions, Twitch and Eve, will recieve major buffs to their kit to compensate.