Mark Rosewater confirmed in his Blogatog, "Double-faced cards are the nail in the coffin for flip cards." I don't think we'll see new flip cards with original Kamigawa 's templating ever again
Sadly the internal width is 13 so you cant fit the 5,000-count boxes, but theres more than enough room for several 800-count boxes in each cube
Swords to Plowshares is to spot removal what Counterspell is to countermagic
As for when the TMNT Magic: The Gathering collection launches, it's set to debut on March 6, and you can head over here to read more about the various other types of cards and the bundles that they will be sold in.
The intention of fun or casual decks is just to play for the sake of playing
that means it has the Shift keyword, so it can be played for less than its usual, 7 Ink cost