Good thing I still have the DLC, and plan to keep it.With the online shutdown something interesting happened to Smash 3DS.
The way the shop works on 3DS for DLC is you first have to launch the game then grab the DLC.
However with Smash you first have to connect to Smash’s online service then you could get the DLC.
Because online shut down, the DLC for Smash 3DS cannot be redownloaded.