I have a question about Veigar. I am aware that Veigar is a highly unplayed champion, and even more so since the DFG nerf. But is he any good? It's odd, since he's the champion which I consistently get Legendary on. It doesn't happen with any other champion I play.

I get that high mobility burst-type AP assassins or poke-type APs are the meta right now, but I don't 100% get why Veigar isn't picked so much. Can someone clarify this for me?