I'm thinking about getting this game, and was doing a little research on it before I start. I had a question that I have not been able to find the answer to. Regarding charge, do you keep charge even if you kill the monster you used abilities on to get the charge, and do you retain charge once you leave combat? When I first read about charge, my impression was it was similar to combo points from rogues on wow, but after reading more I get the impression it's a bit different.
It's a little different in that it's a resource that builds up on you.
If you want a WoW analogy, think runic power. You do things that cost another resource (mana) and builds charge, then you use charge to do other things.
You do retain it after you kill the thing that you built it up on but it dissipates pretty quickly if you don't stay in combat