A slight Veigar E change
His cage is really annoying to play around. Its somewhat short CD, long cast range, size, long duration (3s), and long stun duration (1.5s-2.5s) make it really strong. But the one thing I hate is when you accidentally touch the wall on that last millisecond before it disappears and get stunned for the full time. So how about the stun would be changed to work this way:
The stun inversely scales with life span of the cage. Stunning for a minimum of 1 second and up to the full 1.5s-2.5s depending on how early you hit the wall. if the wall spawns on you, you get the full 1.5s-2.5s stun. But if you're unlucky and manage to touch it right as it is despawning, you only get the minimum 1s stun.
Reasoning: the ability offers a lot to Veigar already. A good amount of zoning, a way to stack some free AP with his passive, and deal a lot of combo damage. 3 seconds is a long time to control an area, and a potentially additional 2.5s stun on top of it is too much IMO for his AP loaded kit to have. And while using the ability properly should not hurt him, being able to do a full combo and then start a second before your opponents can get to counter effectively, while also easily having 1000+ AP to damage them with is a bit too generous.