The fountain drastically reduced your CDs on all of your abilities?

excluding Karthus

Soraka.

INVINCIBLE TEAM, GO!

i've thought of this being an actual implement they put into the game.

with the exclusion of ultimates, of course.

It would have to exclude ultimates for sure otherwise:
Shen
Soraka
Pantheon
TF
to name a few.

Personally I think Gangplank would blow everyone out of the water with Super Fast Ult

maybe ashe too, Arrows, Arrows Everywhere

ashe
panth
GP
soraka
TF

basically any1 with a global ult

TF.

**** wards, I GOT PERMAVISION!

Garen spin r r!

ezreal

good luck doing anything without being sniped

and he could steal buffs this way too

any1 with an alrdy low cd that use tear