Graymel (Columbia)
From Trekipedia
Interstellar power at odds with the Romulan Star Empire. While fighting a losing battle with a Romulan bird-of-prey in the 23rd century, a Graymel scourge vessel unleashed an isolytic subspace weapon. The resulting fracture in the structure of space-time shredded the nearby world of Algeron III, visiting a horrible death on its millions of inhabitants.[1]
