Udmurt earth-and-fertility god; the prompt's 'Mu-Kylchin' is the earth-aspect compound (mu 'earth'). English lead, native Кылдысин (Kyldysin) in term. Holmberg's informant ranked him below Inmar ('Inmar is a god, Kylchin is a saint').
Domains
earth and fertility
childbirth and children
Powers
create and multiply living things
live among humankind as teacher
Enrich the soil and grant the harvest
Sources
Aado Lintrop, 'The Udmurt Pantheon', Sator 22, 2021