User blog comment:Fudgelette/Duke, The Executive./@comment-31656015-20131002104936

Resource is plain terrible. Costs are  too high when compared  how hard it is to earn them and how little he can gain over time. Q helps a lot but when he has a cap of 100 with E costing 15 and W costing 1 per second he'll easily run out of charges  and R takes 75 charges on it's own. which essentially is the equivalent of taking 75% of an mana based champion's mana.

I'd suggest. 5~10 charges per minion kill.

50 per champion kill and allow levelling up his ult to increase the maximum amount of charges.