Afterall I think you are too much depending on xis, I havent ever used any xis rune and i clear Dunc in like 4 minutes with barb merc and this gear: Carsomyr Linga Sharira in ancient armor, 12.5k def, Dyers Eve 10%, 2x Giant's Knuckle 9%ll, Lilith's Temptation , Hammerfist , Steppe Sleeper C...