User blog comment:Supp0rt4n00bz/Teemo nerf ideas/@comment-11322683-20130627143426/@comment-6906412-20130627212357

Riot is working on map-specific champion balances, so in the future Teemo will have a max cap of shrooms he can have on TT at any given time.

Aside from that, Vayne (and most other close-range AA-based champions) FAIL vs Teemo. Just play a bruiser or caster and build MR, your problems are solved. Any burst champ (melee or ranged) makes short work of Teemo.

Teemo is honestly an awful champion (and not that hard to counter I might add), and he is easily beaten out by so many other champions.