Actual suggestion: Veigar E becomes a point-and-click, INSTANT(bold and underline) stun.
Veigar's identity isn't (*wasn't) his infinite scaling - it's being the counter-mobility mage. Ahri, LB, Yasuo - doesn't matter how mobile you are, you get stunned and you die with the rest.
The issue was that E was also a massive AoE denial zone in any teamfight.
The solution, I think, is to keep what made him tick with an instant targetable stun, but remove the AoE and the threat for 5 whole seconds.
Thoughts from present and former Veigar players? Downvotes from everyone else? Ignored by Riot for countering Lee Sin?