Wormhole

Wormhole is one of the more senior members of their little group. She has no protruding crystal growths, and no shining halo; her otherworldly magic is held in each and every glowing scale.
She looks as if she was simply carved from that otherworldly arcane crystal herself...

(Alto wonders if perhaps the size of the dragon in their group dictates their seniority... It's certainly not a completely unreasonable suggestion.)

She's very graceful, and moves with an almost unnatural air, both in the sky and on the ground. Sometimes it seems like she doesn't even move at all; Jazzy organizes some books, turns around, and she's right there behind him, even though he was sure she had been outside.

Her shining, gemlike eyes are always full of mirth; like many of the seniors, she is a very positive creature, finding some kind of joy in every situation she faces. This almost eternal joy can be a little distressing, but she seems to mean well, and such genuine happiness can be quite infectious.