Not all auras though...

actually s2 made that change to his ult in beta, but tons of people cried so they reverted it

they make the change again, and less people cried about it, since he's considered a top tier hero, borderline OP

idejder says this at the 3:15 mark

http://hon.esportmedia.com/video/2010/08/19/cyber-sports-network-tournament-load-vs-pxv-game-2/progressive/

he says S2 makes nerfs based on which heroes are banned