Amorra's Channel

 was a magic spell that Brianna Barter developed to drain energy from women's orgasms.

Brianna was naturally gifted with the ability to drain energy from men during orgasm, as a result of her merger with the spirit Vulvilea.

But she could not do the same with the energy of women's orgasm. It was a variation of the Drain at Range spell, as well as having similarities to how Brianna directed a man's energy into her reserves when he spent somewhere other than her vagina. She developed it primarily during her trysts with her roommate Mary Duffy.