Start off by card breaking everything he does until you get into Dark Mode. Activate Malificent, and hack and slash away with basic combos, since the second attack can stun him. DO NOT USE DARK AURA! The heartless blocks ~ half of the attacks, so it's not worth losing a 9 to do half a dark aura. If you run low on health, Oogie boogie as previously mentioned. If you get knocked out of DM, lather rinse and repeat this.