I leveled LNC to 20 and PUG to 19. I have decent gear 3/6 dungeon drops but no dungeon weapons. In one run, the party had an archer that was basically tanking he took so much hate. We had a number of mobs reset to full because the archer ran too far. In another run, the party had an arcanist with a carbuncle that basically tanked. (BTW carbuncle on capt in sastacha is a really bad idea if the arcanist doesn't pay attention)