When I see a game with 'Blood' in its name, I'm going to totally think about lots of fighting, in the bad kind of the word. The 'Power' just accentuates it, making me believe its all about who's the most powerful, and there's no mercy for newer people. I would totally not play a game called 'Blood&Power' if only looking at the name, as I expect it to be one of the many games out there (Build your own City, build tonnes of troops, farm the weaker players). The name is the first impression of a game, and only a short description can save you from a bad impression on that front (Which means 'Not worth checking out'). I must concur with Ender's interpretation there.
For example, Unbridled Ambitions and perhaps even Coat of Arms has a much more intriguing feel to it, and makes me believe it's not just your average game. Maybe something with Politics or Teamwork (And not the 'big alliance rolls everything' kind, but the 'you're part of a team' kind) otherwise. I'd say you need a name that makes clear there's more to it then just beating up everyone else, which is what most games seem to revolve around. In Battlemaster (the game), the fighting is not so much about battles either, but about war.