You need to be able to cast more than one spell per turn. I'm not talking about reducing casting time by casting whatever the name of the spell, by nearly the end of the game, if you even get that spell at all. Here I am some mighty warlock but I have to take a nap after I buff one unit with a spell I researched on the 4th turn of the game on turn 130. I hardly ever cast any spells. I sure as hell can't burn all the mana I've accumulated. It's silly.