With chrome mox you can exile a gitaxian probe, scarscale ritual, or a cheif engineer if you half to. This is important so that the player can produce blue mana to drop things like cheif. There are twelve cards in the deck that make it work so we're not to worried about it, but thanks anyway.
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As a doctor my colleagues and i have taken a look at your decks condition and feel we have found somewhat of a solution! We hope you will feel the same. Take a look for yourself and see that adding a few mechanics and straying away from solely relying on affinity helps to make a deck that had no lands much more efficient.http://www.mtgvault.com/doctordeckdoctor/decks/doctor-who-realy-needs-lands/