Veigar is OP now, at least in my hands. I just went 43/7/6, averageing 18/2. My build personally is Chalice/Philo but mostly chalice, sorc boots, senjais, Void, Abbysal, zhonyas. Basicaly 650 AP and rapes any magic resistance to below starting. My build is 9/0/21 when i hit 30, the magic pen one is best. Even if you have 200 (unlikely) it reduces you to 180-->81-->66. Still a bit, but taking away around 140 withought giving any ground for AP stuff is pretty sick. The only thing that can really beat veigar at this point IMO is a kassidin (basicaly counters everything veigar does), or him being on a bad team.