Wicked Tribe (カイマ族 Kaima-zoku?) is a special class introduced in Yo-kai Watch 2: Ganso and Honke. They are subdivided in three groups:
- Wicked Executives, a group compossed by powerful, humanoid Yo-kai ranked S, which are the first Yo-kai in this class listed in the Yo-kai Dictionary.
- Wicked Servants, a group of ten individuals of classic Yo-kai, controlled by Wicked creatures, appearing similar to their normal counterparts, with the difference being their darker color scheme and a purple foggy mask with red eyes in their faces.
- A third group of Wicked Yo-Kai which are not registered in the Yo-Kai Dictionary and cannot be befriended, they are also responsible for putting Classic Yo-Kai under their control and turning them into Wicked Servants.
Although the player can get their Yo-kai medals -complete with their own summoning song-, they are unusable in battle until Yo-kai Watch 2: Shinuchi; after purifying Tokio Ubaune, the player can befriend the Wicked Executives around different buildings of Springdale and turn ten individuals of classic Yo-kai into their Wicked Servant counterparts by combining them with the Wicked Powder.
In the games and when playing with the toys, their chant is: Wicked, sticked! Who's calling Wicked? Icked, Wicked! (カーイマカーイマ!呼んだカーイマ?本当カーイマ!? Kāima Kāima! Yonda kā ima? Hontō kā ima!? "Kaima Kaima! Did you call us now? For real now!?").