Cryptic Command will be way too inconsistent in this deck, given blue is only a splash colour. I haven't done any testing of Doran decks yet, but I like the idea of a blue splash, but the first thing I'd add is
Rafiq of the Many. Rhox War Monk is another solid add (I've seen some people say that it's better than Finks in the post-Alara metagame, but I'm not convinced... yet). Mulldrifter can ...