Control the board until your opponent knocks himself out, or until you're able to finish him overhead with
Primal Incarnation. This fight relies heavily on card advantage and control in terms of budget. Your opponent has a hefty amount of small damage spells and cheap weapons. Combined with his stacking number of
Knifejack's, it can get out of hand quickly. Try to save
Lightning Storm for crucial moments. Keep his numbers low, take minimal damage, and the fight will be over before you know it.
My campaign decks are all designed to be cheap and easy for new players. Check them out!