Shul Shagana (Šulšagana) who is a butler and Igalima who is a gatekeeper are the children of Zababa (A.K.A Bau or Baba and the main god or patron deity of the ancinet Sumerian city called Kish whose sanctuary was the E-meteursag) and Ningirsu ( the main god or patron deity of the pantheon of the ancient Sumerian city-states of Babylonia,Lagaš and Assyria) of the Sumerian god mythology.
Alternatively, Ig-aima was a scimitar that belonged to the Mesopotamian War God Zababa. The name carries the meaning of "green blade." Sul-sagana was also a scimitar that belonged to the same god and carried the meaning of "red blade."
- If you were to put Shirabe's and Kirika's battle songs together, they would be in perfect sync. This would make sense seeing as that both of their relics are based on blades used by the Sumerian god Zababa. Here is a sampling of that here and Edge Works of Goddess ZABABA