I was just thinking that the Wandering Heroes would get shirt color magic based on not only Find Mii... but also Mii Force. It's the other StreetPass game that uses shirt color to determine what power your Mii will have. Also, maybe we could extend this to all other StreetPass games. Have the Wandering Heroes use stuff from Puzzle Swap, Monster Manor, Warrior's Way, and even Flower Town.
I really feel that Wandering Heroes are deserving of being playable in Smash. See, StreetPass is preinstalled in all 3DS units whether you like it or not... and Nintendo clearly sold millions of 3DS units... wouldn't that make Wandering Heroes pretty important in the same sense Duck Hunt Dog is important because Duck Hunt sold millions back in the NES days since it was bundled with the NES?