How the Online works: Anything from the wireless Menu is free and and just requires you connect once to get.
The Items can only be withdrawn once. The Maps can only be activated once. [Can't be played until the endgame] The Characters... they summon what amounts to another player- You can recruit, fight, or buy from these, and can it can happen as many times as you want. Recruited Spotpass Characters cannot support and are bad as a result.
Proper DLC is in the Outrealm Gate.
Its just I Saw Nephenee AND OH MY GOD I MUST HAVE HER
You're only going to be disappointed in her. She's a +SKL/-HP FRobin who starts in Knight and can't support. ---