Originally Posted by SuperQuackDuck
I think this would make teemo unviable. I just propose that his shrooms last 2 mins max. And canno have more than 5 on the map on any given moment.
This is much more on the right track to properly handling Teemo. I would say no more than 5 on the map is too limited, however, and that 2 minute duration of shrooms is a bit too short for fairness' sake.
The ridiculousness of Teemo is that his shrooms last 10 minutes. Especially ridiculous in a game-mode which lasts about ~20 minutes on average. You don't have to limit the number of shrooms he can lay, just the duration of the shrooms. That effectively puts a cap on the number of shrooms he can have on the battlefield anyway, since he only generates them at a set rate while his already-laid shrooms are disappearing at a set rate.
2 minutes is maybe a little extreme. Maybe 4-5 minute duration would bring Teemo a bit more balance.