Don't use mana shield as of yet, since it does not have damage reduction, and you do need your mana in order to do damage. Best for you is to pick the offhand skill that you like, and get that item, if you want Command then get a tome, if you want shatter then get an orb. But anyhows, the worm itself, everyone dies from it, not just you heh.
If you showed your every item you have, we can figure out where you got the other 10% dodge from
But to answer your new questions:
1) I'll be honest, i dont know if there is, so I guess you should just try it yourself for a specific item and look at the stat page, only takes less than 5 seconds of work Other than that, I don't think I have seen anyone compile a list for that. As the wiki does not have it either.
2) Hmm, my suggestion would probably be don't use glasscannon as of yet, there are other affixes you can use that will give you more damage and not have a penalty at all. You can most likely try the poison builds, it still works and can do pretty high damage. OH-wise, you can maybe use skull, the skull shield is pretty good and skulldraga is okay, Skulls are pretty good for pve! Damage reduction from Heroic skull and the damage coming from it is GREAT! But other than that, don't use the -100% hp talent and glasscannon yet as those affixes are mostly finishing touches to the build. I myself have been trying to craft a mana shield build, and am most likely going to fail at it as well and waste all my resources.
My last word of advice, damage > survivability , you are most likely going to get 1 shot anyways especially at the higher floors. Even with a tanky build, you will get 1 shotted. And mana shield builds are not good as of right now, until they get some form of change, it is best to use something other than mana shield.