Myself, I would try a lvl 30 Sorc Ghandi. Max Shiver Amor, Max Chilling Armor, 1cmastery, 1warmth, rest into Telekinesis and prebuff ES, T-storm, Shiver armor, and enchant.
Although, if i really wanted to make a lamo-puncher, I'd make a Prayer w/ 1Cleansing-1Meditation. Since everyone will be doing crap physical damage with most of there damage coming from CB, OW, and PSN, Using Cleansing could negate all of those. Further, zeal punching uses up mana, but with Meditation on, you could punch for a very long time. WIth these defensive skills, your inventory would be dedicated to increasing your AR and your damage. You could fill it up with psn charms or one type of ele charms, although I'm not sure if the MDR bug subtracts from one source or from a collection of the same type of ele damages.