Philosophers Stone set would be cool.
Shame we'll never get The Real Dumbledore Auto card. The late and great Richard Harris. What a real sad loss to the HP films.(and his family no doubt!) Can you imagine Michael Gambon doing the Order of the Phoenix's duel with Voldemort.

Such is life.
On a different note, something I've always wondered........... As the American version of Philosophers Stone is weirdly re-named Sorcerors Stone did they have to shoot different versions of the scenes in the 1st film for every time it's mentioned in the film.