Vosh is a Quori, and also the favourite God of the Kuo-Sho in Sloodilpolp. The Quor-Toa summoned Vosh to save them from the Dukedom of Reeds and Water Lilies, who subsequently summoned their own god. The two "gods" destroyed each other, returning Vosh to Dal Quor.
Whilst Vosh is a simple tsucora when in Dal Quor, he is significantly more powerful when summoned by the Quor-Toa due to their god-making powers