They added a TP ( same as skill points) reset stone to the game, it's free to get one every time that you used up one, I'm not sure if this will stay for after the Closed Beta, but if it does, you could actually adjust your build for the coming situation, like on mage you could put a lot of points in thunderstorm, and have a sick strong aoe for super fast lvling, and then change back to a pvp build, or instance build or whatever ya like.
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