Not really an issue as much as an idea:
I thought it would be interesting to have the possibility for a cross wagn card integration. I.e. some sort of notation to allow a wagn card from another site, to be 'included' in one's own wagn.
Seems to follow with the open source/ creative commons spirit. Perhaps its something already under consideration
Obviously this becomes more useful as # of wagns (or decks) increase; but it could be pretty cool on say docs.wikirate.eu, to be able to include cards from wikirate.org; I imagine that other cross wagn possibilities might be interesting in the future. I guess this gets really interesting if one could integrate a set of cards too. The obvious caveat is that permissions should be clear with a feature such as this; to the user running the content (whether it can be included elsewhere) and to the user including the content.