The lamia Anastasia "Descant" Spriggan also goes by Toccata, Sona, and Shanty, but her official/common name is Descant. Only one other relevant person knows her given name as she believes in the power of spellbinding by True Names.

active magic displayed-
Animate the Silkworm: use enchanted cloth to create clothing or, when layered, soft padding/shielding
DiKata, Song of Swords: create magical blades