Amiibo

amiibo are a series of "toys to life" based on characters from Nintendo franchises. Using an amiibo can wield various results such as bringing a certain character into your game and awarding certain bonuses.

The first (and currently only) Xenoblade Chronicles-related amiibo to be released is the Shulk amiibo, released as a part of Wave 4 of the Super Smash Bros. series of amiibo on February 1, 2015 in North America as a Gamestop exclusive. However, Super Smash Bros. series amiibo for Pyra and Mythra from Xenoblade Chronicles 2 to are slated to be released in Spring 2022 along with Steve, Alex, Sephiroth and Kazuya.

Compatability
The following is a list of games that are compatible with Xenoblade-related amiibo.

NOTE: This list does not specify every game that is compatible with amiibo, only games that are compatible with Xenoblade-Related amiibo specifically are included.

Super Smash Bros. for 3DS/Wii U and Super Smash Bros. Ultimate
Using a Shulk amiibo in either of these games will bring a Shulk FP (figure player) into your game, which you can then fight alongside or against to have it learn techniques, gain experience, and customize it.

Xenoblade Chronicles 3D
Using the Shulk amiibo in the 3DS port of Xenoblade Chronicles once per day in Collection mode will give the player tokens, which can be ued to unlock character model viewers and music to listen to in the main menu

Super Mario Maker
Using a Shulk amiibo in Super Mario Maker for the Wii U will unlock a Shulk costume for Mario.

(Poochy and) Yoshi's Woolly World
Using a Shulk amiibo in Yoshi's Woolly World for Wii U or Poochy and Yoshi's Woolly World will unlock a Shulk pattern for Yoshi.