Veigar and his Ultimate
Honestly, I don't see the point in trying to make Veigar an anti-mage by shoehorning in enemy AP ratios, other than arguably his AoE stun (which simply punishes immobile targets in general, mages just happen to be a trend of such), nothing in his kit is anti-mage.
This isn't me complaining about Veigar bursting, I am actually completely fine with Veigar being able to delete people, he has weaknesses that limits him meaningfully in return for all that damage.
I just have a problem with his ultimate, in trying to make him anti-mage like Kassadin - whose entire kit is designed to counter mages - rather than trying to give anti-mage bits to all of his abilities, they just put everything 'anti-mage' into his ultimate.
If they put in other things to his abilities to enhance him and make him into an anti-mage, I wouldn't mind it being there as it would fit his kit, but as it is, it's just like trying to give Rengar enemy bonus AD ratios in his ultimate and calling him an anti-ADC.