Hey, just a quick question. If Master of Magic caused an attack to come in as a foundation with a blank text box, what's the foundation's difficulty and control? Are they considered zeroes, or whatever the values of the attack were?

The card maintains all values and symbols. It just has a blank text box.

It comes down facedown, so it doesn't have those values. If referenced, they'll be seen as 0.

Oops. Failed to read the card.