i dont have scan, but its in servant physiology page
Servants are spirits summoned by the Holy Grail to compete under Masters in the Holy Grail War. Typically, they are Heroic Spirits, beings of a higher existence given to them by the people's ideals of them, but can also be Divine Spirits, Phantoms, Wraiths, and even normal humans, in extreme...
vsbattles.fandom.com
Servants are spirits summoned by the Holy Grail to compete under Masters in the Holy Grail War. Typically, they are Heroic Spirits, beings of a higher existence given to them by the people's ideals of them, but can also be Divine Spirits, Phantoms, Wraiths, and even normal humans, in extreme circumstances.
however, they dont have incorporeality in their profiles iirc, so, they are physical souls or something? lol