Tsar school

The Tsarpa; (tshar pa); Tsarpa School: Tsar school; Tsar;

This is the lineage that comes from Tsarchen Losal Gyatso (1502-56), which is also called the “ear-whispered-lineage of Tsar.”

The main emphasis of the lineage is the Thirteen Golden Texts of Tsar, including the secret doctrines of the greater or lesser Mahakala, Vajra Yogini, Jambhala and others.

This is called the Tsar tradition.

Source

http://kagyuoffice.org/buddhism/buddhism-in-tibet/the-sakya-school/