Another Problem with valkyrie Crusade....

[DodoNova2]

Sooo......

Attack Potency: Multi-Solar System level (Is the constellation of Sagittarius), Galaxy level with her arrows (Her arrows can pierce through galaxies)

it's Multi Solar System (but depend how large are Arrows or Hole in galaxy)

Also scan would be cool i really doupt she is a Constellation (I can be wrong)

 

[Tsubasa16]

Saggitarius is one of the "Star Spirts", which are essentially the physical forms/manifestations of the constellations (In Andromeda's case, both the constellation and the galaxy) in the sky, it is a thematic of quite a few cards. One of them is literally refered as being a "Fish of the milky way" (Pisces).

That mostly can be seen here: http://valkyriecrusade.wikia.com/wiki/Gods_of_the_Starry_Skies/Story

The galaxy thing i don't really have sure, as it is only mentioned she can pierce through entire galaxies (such as the milky way) and that afterwards, her arrows become shoothing star-like things travelling on the sky.