Seriously nerf Riven

Hey riot. Are you guys ever going to nerf Riven? This champ is so broken and you guys didn't even touch it. What you guys did is nerf Swain. I mean seriously you try to rework swain and then nerf his E and ult. Well you buffed his Q but it doesn't do shit in teamfight. And swain is a big mana hungry champ. Riven doesn't even need mana. She does damage ,she has escape ,she has 2 sec cooldown on her E which actually makes her tankey too. And you guys made her W like Amumu's ult which can stun the whole team and change the teamfight. Seriously nerf that champion . Teemo is even better than Riven. Did you know? Every season many summoners die in teamfight for Riven. Nerf this champion. Make league better.