I know it's been a while since Nightlight's Legacy, but I thought this was still relevant. Katherine will come tomorrow.
Signature colour-very pale grey
Signature weapon-none, the Descendants of Ombric are not natural fighters, although those that do use magical staffs or if they're feeling particularly flamboyant, wands.
Symbol-Gold hourglass
All have a strong connection to magic, stronger than that of the Descendants of North. They are excellent academic learners, although like everyone, each one has a field they are especially good at. Magic however is something they all excel in. Each one has an understanding of the time stream, and and can look into it with the right spell, equipment or preparation, but only at certain points depending on the person. Some can only see the future, the past or the present, some can do multiple, none can do all three. They can also sense if someone has gone too far with messing with it.
Like most Descendants a Descendant is born every few generations. Once one is born and starts showing signs of magic, usually around four or five before they start school, a Descendant of Ombric will come in, explain to the parents, and take the child to Santoff Claussen, where they live and train.
Most live there the majority of their lives, although often taking trips back home to see family. They see themselves as the last line of defence in Santoff Claussen along with the Descendants of Katherine. Since it is possible for someone to get past the forest, the spirit and the bear, the Descendants consider themselves the line that no one's been able to get past. That's because no one's tried since, so they still stick to the 10/20% combat force and everyone else learns and teaches various forms of magic or other subjects.
They were the ones who got the Descendants of Toothiana, Sandman and Bunnymund together to fight the Descendants of Pitch when Pitch rose again. However, once there was talk of HOG being formed they retreated back to their homes, which wasn't Santoff Claussen at the time. Only relatively recently did they move there.
Their origins are unknown to anyone outside of the Descendants of Ombric and Katherine.
Most have red hair and either blue or green eyes.