In the most recent Nintendo Direct for the upcoming Xenoblade Chronicles 2, Nintendo revealed that Rex’s gear from the game would be available in The Legend of Zelda: Breath of the Wild as cross-promotion content. Along with that comes various fixes and functionality for all 4 of the Champion amiibo. You can look at the patchnotes below.
Version 1.3.3
- The amiibo of the four Champions (Revali, Daruk, Urbosa, and Mipha) are now supported.
- The side quest to receive Xenoblade Chronicles 2 collaboration gear is now available.
- An issue preventing the × mark for Game Overs from being recorded in Hero’s Path mode from Ver.1.3.0 onward has been fixed.
- Various fixes to improve gameplay.