This looks great, Jay. I'm sorry I couldn't help out more.
I think we should use 5 Dimshields in each of our dimshield decks. 4 just really isn't enough for Dimshield to reach its full potential. Over the course of 23 turns you will draw 4 dimshields. In the first 5 turns it won't be necessary to chain shields yet, which leaves 18 important turns to stay alive. 4 dimsheilds blocks 12 turns of damage, which leaves them 6 left. 5 dimshields blocks 15 turns of damage, which leaves them 3 left. As you can see, there is a huge jump in power from 4 dimshields to 5 dimshields at the cost of only one card slot. We can salvage up to 3 dimshields, so we can run 5 in each deck.
I'll be on in a few hours again to check everything.