Hi. When I got my lv 20, a random guy with my level invited me for a duel. Just for fun, I accepted, then we got in a crazy fight in the mines, till my opponent had low hp. Then he started running all over the place and I following him, then we kllled a mob in the middle of the duel. What happened? He leveled up and recovered all his hp and mp. I got a little confused but I tried to fight him again, (not using pots by the way),when he got low hp again, he used all his xp card to level up another time in the middle of our duel, recovering his hp and mp again. My question is, was this supposed to happen? If you can use the xp card in the duel, then can you also use in pvp? I know it was a low level fight but I got a little annoyed by this.