Hey Mark! As a big fan of Booster Tutor and Summon the Pack (they're fantastic cube cards that I love watching people get to play with) do you think that in a potential future Un set we could get cards in other colors that let you get cards from Magic packs? Or is that a mechanic that's only in color pie for Black Un cards?

We’ve did a booster tutor in red in Unfinity (with Opening Ceremony). All colors can have access if done in an appropriately in-color way.

Does Opening Ceremony tell us that colorless mana comes last in WUBRGC?

When we print all six symbols at once, yes.

Resending this since it might have gotten lost:If I open a Unstable with Opening Ceremony during a game of Unfinity Limited, and cast a creature that Assembles a Contraption on that turn, can I Assemble one of the Contraptions from the pack on that turn? Or is that not close enough to Casting to work?

If you assemble an Contraption, you can make a Contraption deck out of the two cards in the booster and randomly draw one.

Hi Mark! Hitting you up with a Mel question this time. The formatting on Opening Ceremony lists the mana in WUBRGC order. Does the C come after colored mana when a card gives mana now, rather than before? Would it go after or before colored mana in a mana cost? Thanks!

We do it so infrequently, I’m not sure we have an official order. In collector number order, colorless cards come before colored cards.

Aey-therborn or Eee-therborn?

“Aether” is pronounced EE - ther. I said it wrong for years before being corrected for the Kaladesh Opening Ceremony at PAX.