Editing MedHammer 40,000 (section)

===NOTE: Lore check — several points need attention===
"T'au Va" and "T'au" usage: Officially the race is "Tau" (with or without apostrophes depending on edition), and their ideology is the "Greater Good" (Tau'va). "T'au Va" as a formal name is a fan variant; choose one standard.

The ethereals were not literally "created" by the Eldar in mainstream lore; the origins of Ethereals are mysterious and subject to in-universe explanation. Claiming Eldar-engineered Ethereals is a significant divergence. Mark as deliberate if intended.

"Cerulean Socii" and "O'shasanuk'la" appear to be homebrew names not found in standard sources; if this is a custom setting, flag as original material.

Commander Puretide is a known character (Aun'va? Commander Puretide is less common — "Aun'Va" is the Ethereal), and the timeline of caste dominance :(Water, Fire) and the phrase "rise of Commander Puretide" may not line up with established lore.

"Expunged Ethereals"—if you mean the purge of early Ethereals, clarify context; "Expunged" is not a canonical term widely used.