mcatoms asked: In an effort to make this speculation season more interesting and hopefully set the correct excitement expectations... Can you tell us if the Kaladesh mechanic has ever been printed before? As in: Is it completely new territory we've never seen OR we've seen the ability but it hasn't been keyworded OR is it something that has appeared in another form but is now perfected?

You haven’t seen any of the (named) Kaladesh mechanics before.