Veigar Q is crazy bugged.
His passive is applying stacks for Q - Last hit minions = 1 points , 2 points for hitting big camps and minions. 1 point for hitting players and 6 points for killing OR 5 for assisting on players... I know this is NOT intended... because I am hitting like 300 stacks before 30 minutes...
and that's just Q... LOL W,E,R also apply stacks for hitting players which is intended.
However this feels balanced??? So either A. its a bug and he just needed that big of a buff. B. Its not a bug and he just needs all of it. C. Your description sucks and needs to be more descriptive.