What games would Wario series Amiibos be used in?

[CM30]

Other than WarioWare/Wario Land, obviously. Think any such amiibos might be used in Super Smash Bros or Mario Kart for alternate costumes or items or something?

 

[JoeKarta]

Using the Wario amiibo in Mario Kart 8 not giving his Bikers suit might be the reason Nintendo is doomed.

 

[Bubba]

Assist trophies/in-game trophies in Smash, Mii outfits/ new karts/bikes in MK8, and for 9-Volt have every handheld game play like Gamer in G&W.