We don't, and it's kinda fun! We rule that Guise stole the card type to use it as a weapon (IT'S SO YELLOW AND HITTY!), so it's no longer that type, making it the only typeless hero card(?). That makes for interesting interactions with cards like Selling Out, Super-Scientific Tachyon and Miss Information's Missing Resources.
Strictly, the card not being a one-shot means that it shouldn't go to the discard after being played, but we forget about that bit. (IT'S ALL CRUMPLED NOW! THEY SURE DON'T BUILD YELLOW BARS LIKE THEY USED TO - OF COURSE I'M THROWING IT AWAY! SHOULDA SLEEVED IT, SHOULDN'T YA?)