Gatekeepers

The 12 gatekeepers are the bosses of Egyptian Mythology. Although Egyptian mythology has the most bosses, they lack variety: the 12 bosses are more or less the same, and only get stronger as the player passes through Duat. Like most bosses, the gatekeepers are summoned by right clicking their boss spawners, only they must be right clicked with a Name of the Gatekeeper, which are found in Sphinx loot chests or crafted. The boss spawners are found before every Duat gate.

Mythological background
The ancient Egyptians believed that the twelve regions of the Duat were closed off by massive gates, each one guarded by a serpent monster. It was believed that those serpent monster were invincible, and only allowed passage to those who could say their name. Pharaohs were therefore buried with the names of these gatekeepers inscribed on "books" printed on the inside of their sarcophagus. The names and descriptions of these deities varied from one source to another.