Out:
Saheeli Rai - Removed, because Daretti has more relevant modes, plus it's slow and difficult to tutor as a combo piece.
Chief Engineer - Usually not enough creatures to make it consistent enough. Great when it works, but doesn't work often.
In:
Daretti, Ingenious Iconoclast - Could be good for helping us survive a few turns.
Contraband Kingpin - Good blocker, plus helps dig trough the deck.