While it is true that all Amiibo figures are compatible with the Legend of Zelda-themed musou brawler known as Hyrule Warriors, certain Amiibos will have added functionality, according to Nintendo.
As you’d expect, the Amiibos that add the most to Hyrule Warriors are the game’s stars, Hylian hero Link and Princess Zelda. When connected to the game, the Link Amiibo grants players access to the Spinner weapon first seen in The Legend of Zelda: Twilight Princess. The rewards granted by the Zelda Amiibo are less specific, but Nintendo claims that players can link the figure to the game as frequently as once a day to unlock a random weapon of three-star quality or better. All other Amiibo figures can be linked to Hyrule Warriors once a day to unlock a rupee bonus, crafting materials or a weapon below three-star quality.
The first wave of Amiibo figures will roll out alongside Super Smash Bros. Wii U on November 21, while Nintendo plans to launch a software update to enable Amiibo functionality in Hyrule Warriors in “late November 2014.”