Yama - God of the underworld.

The amulets of Yama - God of the underworld.
(Thai : Phaya Yam or Phaya Yom).
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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.
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In tantric Buddhism he is called Chogyal and is a Dharmapala,
depicted with a red face, a skulls necklace and holding various weapons.
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Amulets of Yama are rather rare, and are considered as very powerful protections against any type of malevolent entity or ghosts.