A coven of witches. Prue, Luce, Ashe, Tere, Ire and Una. Trust them like you would trust a dwarf to hold your beer.

 

See also:

 

Vagile's stabbing service, by Vagile
Ashe's letter to Prueddleby, by Ashe
Research on Magical rites, by Aeaea
Destroyer
K'pyn's enslavement