The deck looks ok as is. It is almost identical to a counter used for Neptune, except it has two rather low damage Immortals. If you are going for a rareless deck, then I would switch these Immortals out for another 2 pillars. +2 Pillars would help pull out a dragon hopefully by turn 3, but +2 lightnings as you suggested have the rather specific use of getting rid of a Charger, mutant with steal, etc. since the Dim Shield chain should prevent other non-poison/momentumed damage sources. But if you do have rares, then adding 2 lobotomizers may help control the opponent especially if they pull out a later Shard of Focus as well as a soft counter for Chargers. So in conclusion, ditch the immortals, replace as needed, but don't expect too much from it other than AI3 and lower.
