Simple Suggestion

Very brief and simple suggestion. Dragon should not be able to level up while it is aggro'd. A number of times I've had smite miss because dragon levels up mid fight. I thought this was something nobody else ever experienced until I watched it happen to in Game 2 between C9 and APX. A mid fight level up simply serves to create a difficult (I'd say impossible) to predict interaction between players and the NPCs (something, that I believe Riot has done a good job doing away with in general).