Perfect Veigar E Buff

Make it block line-of--sight without denying allied vision (like a donut-shaped bush).

Here's why it's the perfect buff:

#It's reasonable

• Veigar currently shines in teamfights but feels kinda crappy to play in 1v1s. In a teamfight, you'll have allied vision all-round, so it's unlikely this will actually buff his teamfighting (or even small skirmishing) at all.
• It's not a huge buff to support veigar because you'd have to catch both enemies together inside it to give it the 'smokescreen effect'
• Hard-countered by wards
  • This is bad on akali but fine in this case because veigar isn't depending on the effect for survival.
• If this is too big of a buff, we can nerf him somewhere else to compensate. However I don't think we'd need to.

#It fits thematically

• You can't see through an event horizon.
• Related: It delivers on its fantasy, "Trap people in a box and sling stuff at them."

#It's versatile

• Use it in lane to deny vision so you can harass more easily.
• Connect bushes in top or bot lane for epic jukes
• Deny enemy cs
• Place around yourself like an akali shroud that they can disable by warding or stepping inside
• Your jungler waits in bush, you E so the side hits the bush, they can walk closer without being seen.
  • More likely: you can play mind games with your opponent to trick them into thinking there's a jungler in the bush.
• What else can you think of?!

#It's Unique

No other ability denies vision in THIS particular way (smokescreen and nocturne ult remove shared vision with allies).