Yamask

Yamask is the ambassador between Life and Death guiding dead souls back to life for a short amount of time to see how their families are doing.

Not much is known about his past accept for the fact that his father is an Island Kahuna.

Yamask joins Rotom and the Adventure Squad multiple times on quests.

The first time he is seen is while Mawile is fighting Lampent at his station, Yamask bring Chandelure back to life to see his younger brothers again.

He is seen again at the Primary Radioactive Lab helping Rotom find the rest of his group.