User blog comment:Kait-zero/The Stealth rework, why Evelynn needs it but Twitch doesn't/@comment-71.67.243.178-20120327104132

I don't think you understand that Eve was intentionally made weak because persistent stealth is a brokenly overpowered mechanic in League of Legends. As Zileas put it, being able to scout and manuever undetected is one of the most powerful abilites you can have in a game that uses RTS mechanics.

Back in the day, Eve also had a stun on her stealth. Since she's constantly MIA, had a powerful nuke, and a stun-on-demand, she basically forced an entire team to tower hug and play passive. Overextending when the enemy had an Eve was taking one step away from your turret. And you think jungling against a Shaco is frustrating? Jungling against an Eve is even worse.

Thus, Riot tried several nerfs until it got to a point where they had to flat out spay her with the removal of her stun. However, if you learn how to exploit the broken features of stealth and get farmed, Eve is still pretty strong.

As for Twitch, he was already nerfed with the rework of his ultimate. He's not as big of an issue because he didn't have a stun and he's an autoattacker. Eve is a nuker, which is much more frustrating.

Keep in mind that Riot's reworks are aimed at persistent stealth. They want to rework it so it isn't so broken. Then, they can adjust the champions that used it.