6.9 Veigar Support - Freelo Stacking
after the 6.9 changes to Veigar's passive, stacking AP with him is now easier than ever. With his E->W->Q combo, all landing, you get 3 stacks, and if either you or your ADC kill the target you get an addition stack from his Q.
Potentially +4 AP per kill/assist turns Veigar into a mid/late game nightmare to deal with. So building him a little tanky could actually be a good idea for him in the support role.
Here is a concept build I'm going to test in the next few days:

