According to the FAQ, they don't get listed here, but if I was to list in my personal collection, it would go under the player I collect. If I collect both, then I'd have to find another one or create a special area for multi-player cards that I don't have enough to put in each player collection. But I'm A-R that way!
-- Dan --
Note: Please see my profile for more info regarding trading (section updated 3/4/2024). I have added a large portion of my inventory to the site, and currently have trading turned on (details are in my profile).