not sure if this one still works but there are areas on the map that are on fire lure it in to them for extra damage.how to defeat the cursed armor on level 10?
lets see what else, attach a movement attack to a ring or necklace so that you have one on hand during the fight. you can also try to spamming long range skills and have haste active when you can.
iirc it only takes damage when ko'd but I'm not sure on that
oh I almost forgot destroy the crystals since it can heal itself by killing the mobs summoned by them