Yama - God of the underworld.

The amulets of Yama - God of the underworld.
(Thai: Phaya Yam or Phaya Yom).
Yama is the God of Death and the King of the Hells Narok.
He is not a "demon" or a malefic deity,
but is simply the herald of Karma at the moment of death.
In tantric Buddhism he is called Chogyal and is a Dharmapala,
depicted with a red face, a skulls necklace and holding various weapons.
Amulets of Yama are rather rare, and are considered as very powerful protections against any type of malevolent entity or ghosts.