Quote: DarkCynder_543Ah nah they weren't going to be for smash bros only. I was wondering what their other uses are outside of Smash and if they were really worth it.
I would only collect very few though, the ones that I would use most.
How they're used depends on the game.
Here are some examples of the best amiibo games IMO:
Fire Emblem: Fates - Lets you challenge Marth, Ike, Robin, and Lucina and when you beat them, you unlock them as fully playable units (the only thing they can't do is support with other units, but they offer solid pair-up bonuses by default). All four are actually very powerful as units if built right. Marth is easy to turn into a high-crit rate dodge tank, and Ike can have some beefy defense and strength, for example.
Codename S.T.E.A.M - Scan Marth, Ike, Robin, and Lucina to unlock them as playable units.
Shovel Knight - Grants you access to the "Custom Knight" mode which allows you to play through the game in a more RPG-esque way. Accumlating treasure gives you experience to level up, giving you new abilities and costume changes, some you can't get in the main game without cheats. Also unlocks challenge missions for some of these abilities. You can also get a fairy companion of the character you scan for that functionality.
Breath of the Wild - Most of the functionality for this game is lame, just has you unlock armour and stuff you normally can't get or weapons that break just like any other weapon (and they're random drops so it's not guaranteed). But Wolf Link's amiibo in particular has cool functionality. Scan him and you can summon him as a companion that will help you fight. Also, if you have Twilight Princess HD, you can scan him there to play a special dungeon. Beating that dungeon allows you to record the amount of hearts you had left onto the amiibo, and you can then scan him back into Breath of the Wild to summon him with that same amount of hearts. This is the only example of an amiibo that has cross-game functions (i.e. where the amiibo data in one game is used to power what an amiibo does in a future game).
Also, it's worth noting that even though amiibo are generally used in multiple games, if you have two games that have read/write functionality for your amiibo, you can only save data for one game at a time. So for example, you can save data for Smash Bros on a Mario amiibo. That same amiibo will work for Mario Party 10, but since MP10 writes data to the Mario amiibo, you have to delete the Smash Bros data to save the MP10 data. This is one of the reasons why the same characters have multiple amiibo.