Sapper (Erzili ?) is a student at Whateley, living in Whitman Cottage. Her powers haven't been defined precisely enough to characterize yet, but she's apparently capable of taking down a power armor jockey (Gryphon) and draining the suit's batteries.
She's an African-descended Jamaican Exemplar, with a hot body and an exotic Jamaican accent. She left Kingston under "complex" circumstances and has apparently been trying for membership in the Masterminds. Jadis considers those facts enough to suspect her reasons for dating her brother Malachi.And Jadis also attempted to use the Tigers to break them up, but failed.