Did you take that fake card idea from somewhere else? When I read that it seemed I already saw something like that o_o
Whatever, I like the idea, could make a lot of improvements but that's a good idea roughly.
Party Fly Wing? LOL That'd be so funny XD
I think party Butterfly wing would be better, it's like a warp portal back to town for the entire party.
I don't see much use for the Party Fly wing
'
Even so, I don't think you can make every member scatter on all the map, the item would teleport the entire party to a random place together. I can be wrong, lots of years I don't make or even see much RO scripts.