How to fix Veigar's E and make it more interesting!
I was in a game with an enemy Veigar and while his E's were decent they were fairly easy to dodge. He was complaining about it then I wondered... why can't the event horizon act like an event horizon and also offer players interesting interactions.
Make it so the event horizon draws people towards its center.
Proposal: Inside the event horizon the pull is stronger, but towards the edges its weaker. Not a yank like Ori's ult, but if you stood still you'd be be slowly pulled.