That will make things a little bit more complicated than it needs. You already have 12 blink effects in the deck without need of a second color. But I'll keep in mind a blue splash in the future.
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Fetches are to reduce land draws and also to get an extra trigger on Steppe Lynx. You don't need any of these colors to cast any spell in the deck, you can morph Akroma and Sagu Mauler and then use Cloudshift, Turn to Mist, or Flickerwisp to blink it, then they will return face up.