Who to beat the boss the great dragon in dqm joker

Simple have a lv 25-30 one having a dragon slash move and tension (put as third monster) the others have oomphle and kabuff to raise atk and def so you dont get high hitted then with the monster who knows dragon slash get their tension to 100 then use the move (others use oomph on the monster or oomphle and kabuff) (wrote by Freelancer65)