if this is your first time playing Lunia, my suggestion is make a Hybrid build (build for both stage and pvp) and get the hybrid build with the most variaty(sp?) of skills. you can't really choose from just reading about a skill, you might not even know what the skill looks like. secondly, you don't know either if you like pvp THAT much to be PURELY PVPING 24/7.
summarization: get a hybrid build and try stuff out before you make a pure pvp build