Nice read. I noticed though for your jeskai, the only white is mentor and swords, that's it. Since you are worried about the effects of wasteland, could you -1 tundra, +1 island for a more stable mana base? But having 2 un-wasteable (is that even a word outside of magic) islands you can fetch up lets you cycle thru your narets easier. With the number of fetches you run, you can wait to bring out the tundra until you are ready to use it.