Best method to knock it out but a little bit expensive for low level players is too Have 2 parasaurtheriums one with a ballista turret equipped with chain bolas and one with a trebuchet bring sweet vegetable cake in case of emergency. Get on one chain Bola the karkinos get on the other move to the front of the karkinos with the trebuchet facing the front of the ,arkinos and fire you may have to bola it more then once if its a higher level good luck survivers!