Twitch's Gameplay isn't Plaguey enough (An idea for Twitch's Kit)

Despite being called the Plague Rat, I don't think that he's more of a poison user than some kind of contagious disease spreader as the name would say.

I propose that when you, ally minions and champs are infected with Twitch's poison, the poison would spread to other ally units if your within a certain range of the champion for a certain amount of time. it could also do more damage and last longer the longer and more you are surrounded by other infected units. Also, if its not too much, when you are hit by Contaminate, the infection range will get larger for a few seconds.

Just an idea that I believe will put some more variety and uniqueness in his kit, but I hope that Riot will at least take a look at this. Please give me some feedback on this!