Was Ra'gak closest to Tak'zaya Ska and Skor'oz Zik when he was alive? Was the orcish pantheon different when he lived? Did he know about more gods than usual, since he wandered around? Did he learn much from nonorcish culture/religion, or was he too focused on food for that? How did he keep slaves?
Ra'gak was by orcish standards very cosmopolitan, though his habit of kidnapping people who he thought he could learn recipes from did not make him incredibly popular in a lot of non-orcish lands. He predates some of the more recent deities, certainly, and knew about a lot of other more regional ones, but both Tak'zaya Ska and Skor'oz Zik at least were around, and he kept in their good books.