Having a Mystic Ally is important, preference being the Obsidian rune stone version of the skill. Granting a 50% health bonus and agro pull on the ally. Having a follower will be helpful with this build also. Using Retribution Mantra runed Crimson for Retaliation to set off the creatures effected by Exploding Palm. Personally I would prefer the Templar, as they are most durable out of the followers and can act as a distraction for you and the party.