Veigar's Even Horizon Should Form Gradually Over Time
The problem with Veigars old E was that it was a long range instant aoe stun that was unavoidable against good Veigar players. The problem with the new E is that even good Veigar players can't land it at all.
The fix for this is to have the event horizon pop up gradually in an enclosing animation. Have it begin at the point closest to Veigar instantly or near instantly and over .5 or .75 seconds it gradually encloses around to the end farthest away from Veigar. This would allow Veigar players to punish enemies that are over aggressive or careless while it still being fair to other players. Riot said they felt the stun had little to no counter-play and this would give it counter play while allowing it to remain usable by Veigar players