What if Singed R (and W) worked like TF W

I Posted this on reddit yesterday, and now i'm doing it here cause i think people from both boards are different and may have different approaches/opinions on the concept:

http://www.reddit.com/r/leagueoflegends/comments/2gibbn/what_if_singed_r_and_w_worked_like_tf_w/

So, I was thinking if wouldn't make the champion competetively viable if were added more 2 or 3 ''potions'' to Singed and you could choose between them just like TF W. Instead of searching for a card you'd search for one out of three potions (e.g. a potion of strenght that would empower your auto-attacks and the distance that you throw people with your E, or a Speed potion that could work exactly like his actual ult, or even something that made his poison go out quicker and more concentrated to help on those tight teamfights)

Another suggestion: His W could work the same way, choosing between potions and throwing them at enemies (for example throw a ''bottle'' at a location to slow enemies just like his actual skill; if you hit right on the enemy he/she gets rooted. Maybe an explosive potion, or a healing one allowing you to throw'em at your teammates).

Thx for the attention