The Teemo buffs on the PBE...

-Noxious Trap (R) mana cost reduced to 70/85/100 from 75/100/125-

The moderately costly useless shrooms have become slightly cheaper useless shrooms...

Way to miss the actual problem, Riot. Even if you make Teemo a manaless champion the way he is right now it still wouldn't do anything. It's the arming time and duration time that doesn't work out. I can only hope that Riot won't stubbornly try to make that 5-minute duration work by throwing one useless buff or experimentation after another at Teemo over future patches because unless he gets completely reworked entirely to get new abilities and assets to work in teamfights the duration nerf can't be justified. Did you see ANYONE on the boards complaining about "high mana costs" as far as the Teemo rework is concerned? No. Because they have never been a problem. I'd rather pay 200 mana per shroom as long as they last long enough to have an impact.