With Rafiq and Dorin being Legendary, i don't think you necessarily need 4 of each in there. ESPECIALLY with 4 of the harbingers to help you bring Dorin into your hand. I would say drop it to 2, and put it more Paths and Vapor Snags, or put it some disenchants to help with artifacts/enchantments. Otherwise. Strong combo.
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And add in/sideboard the Lifelink auras
Nice. I would take out the restless apparitions and put in two Evershrikes. Goes well with your Edge of Divinity auras.0
I'm in agreement about the Mirran Crusaders, but I think Fog is clutch for your deck. It will allow you to be more offensive, as well as feint with your ou should definitely combat phase. You're completely reliant on your creatures for damage, which is fine... But if you're running some green, I would put some Naturalize in there to help protect your creatures from artifacts/enchantments that would ruin your ability to stay offensive.
Hey I heard you can talk while holding water in your cheeks.. Nice deck.