I donno about you but ive been facing 
quite a lot these days
And he can kill any almost any champion with W and E combo not even R
I mean even Aatrox with a full build can die to him like wtf can we please nerf him or do something about him ?
He's almost at a 50% win rate
Plus he has a mediocre early game and is quite squishy
Would have to be fairly late game for him to 1 shot with only his W and them have no MR
Magic pen on veigar should be half as effective.... i mean he gets free ap for farming and poking, he literally doesnt need to be a tank killer too.
In iron maybe. Dodge his stuff. If it's that hard for you to avoid stun, consider stacking boots+runes that give tenacity. You can almost entirely negate his stun if it's THAT bad for you.
Legend: Tenacity = 30% tenacity Unflinching = 15% after casting a sumoner spell,+10% for each SS on cooldown Merc treads = 30% Elixir of Iron= 25%
QSS/Merc Scim=Remove stun entirely. Cleanse=Remove stun entirely.
Tooons of options. If you still can't dodge them IDK what to say.
You can also play champs immune to it. Olaf ult, Ornn W, Gangplank W.
If it's really THAT devastating that it's the reason you're losing, there are tons of answers. (though tbh it shouldn't require such extremes to handle him, by that I mean you shouldn't need all this, most don't)
brace yourself for vagina mains, suddenly every champion with easy mechanics and high reward is not broken, you tell them it's too much damage! they answer "but he's squishy" well shit teemo is squishy too, you don't see him stacking infinite Q damage from every living source and 0.5 seconds massive secondary damage; with (AGAIN) a massive AOE cc that lasts a whooping 2 seconds stun with a range higher than a velkoz's Q on steroids...
Give me a break with that nonsense, almost every squishy champion with no gap closer can't dream to dash out the same amount of damage a veigar late game does with any single one of his abilities compared to their entire kit
