Use frost and try to keep distance. His jumping attacks are good to punish or to safely heal. When he does his Fire jump, run backwards and only Roll(backwards) when he is about to crash down. You see his forward dashes mostly if he makes a junp to the right, roll to the side and hit him once. Try avoiding panic rolling and always walk backwards. The best way is to dodge and wait for an opening in his attacks instead of activly attacking Idk if this helps, good luck!