Take a look to take to the second wave of amiibo that Monster Hunter Stories will be getting on December 8th in Japan. Capcom also annouced today that the three amiibo include Cheval riding a Rathian, Ayuria riding a Barioth (glacier), Dan riding a Qurupeco, and you can actually remove the character from the monster to have any combination you wish.
Monster Hunter Stories for Nintendo 3DS and the first wave of amiibo releases on October 8th in Japan. While the second wave of amiibo will be released two months later, on Decemeber 8th. Sadly, Capcom haven't announced yet any date to be released outside Japan, but let's hope to see this new game in the US any time soon.