Note sure if it is worth running a full 5 colors. You only use blue for Mind Spring in the main deck, at a double [U] cost the value of splashing just for that seems low. Drop the 2 islands in favor of another swamp and forest since you are running more green/black anyway and swap the Grixis Panorama for a Jund. You could also possibly drop white as well to focus your mana even more, (although the Hatcher/Cloudshift is nice.) Also why run brass squire with only one, low-equip-cost equipment?
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You mention Blasting Station as a win-con but it's not in the deck? Coat of Arms seems like it will be a liability more often than a help to you. Also Elbrus can not be in the deck because it has black color identity.