items and ults

There should be a variety of items that will shut down any ult for particular champions. It should make it so that with just a little caution, that the opponents ult can never be used against them.

For teemo, you can shut down his ult with any of 3 items. Hextech sweeper, Lightbringer, or Twin Shadows. The all reveal teemo traps, which means they are just about useless. Any champion has an option with one of these three. The sweeper allows for armor and vision, the Lightbringer gives attack damage and crit chance, and twin shadows has ap, movement speed, cdr and does cc.

Each one of them essentially makes teemo shrooms useless ... especially in ARAM. If you have items that completely nerf out one champions ult permanently for the rest of the game, there should be items that nerf out any other champions ult for the rest of the game. Either that or buff Teemo like crazy so that his one other damage spell and his e that is always there make up for the fact that a reasonable teemo defender does shut down his ult.

Or level the playing field and take away the items that reveal his shrooms, make his E either toggle or charge his basic attacks (and then proc spell vamp) so that he has more than just one spell that can do spell vamp given that a knowledgeable defender won't fall into traps ever.