Dont you think Guide is the weakest card in the deck? Ibe played it in a more aggressive deck like boros, more focused on energy theme, and feels much better than in mardu midrange. Maybe is a good idea to replace de set of Guides, with extra copies of Fable, Ajani, Solitude and the 22 land? (I see some recently lists with the white double side and with disenchant effect)
Replacing Guide with something else could be an idea, even with Nethergoyf maybe, just to have a better "standalone" card. In the next days I'm gonna try to tune the deck a bit, I'm sure there's room for improvement!
