Weird interaction between Veigar and Luden
If Veigar uses Q and kills 2 minions, then the Luden proc kills a minion, he only gains 2 AP from the first 2 minions. If his Q kills 1 minion and then Luden kills a minion or more, he still gains 2 AP. If Q doesn't kill any minion but Luden kills 2 or more, he also gains 2 AP.
That's really inconsistent IMO, it should be Luden always gives bonus AP or nothing, and seeing in what terrible shape Veigar is in atm, pref the former.