They tried that with Planeshift, on the 3 legends, but it wasn't all that spectacular.
That said, I think the thrill of the hunt of opening packs is MUCH higher now. Didn't they just do a similar thing with Zendikar, however? Lost treasures, and all that...people opening moxes etc.
I would actually like it if WotC introduced "Ultra Mythic". These cards should do the same as other mythic rares in the same set, but have special art and maybe special frame or special foiling. So these cards would be expensive collectibles that would allow players the wow-moment of opening a $300-400 card in their pack, without actually affecting the game or the rest of the economy around magic-cards.
Yeah. And it worked on me in both instances.
My Tribal cube
My 93/94 old school cube
My Artifact cube
My Hearthstone Quiz App for iOS
My Tribal cube
My 93/94 old school cube
My Artifact cube
My Hearthstone Quiz App for iOS