The Four Sisters!!
Prisma is the oldest of the four Black Moon sisters. She is constantly bickering with her younger sister Avery. Prisma's power is Dark Lightning.
Avery is the second oldest of the four Black Moon sisters. She loves to annoy her older sister Prisma. Avery thinks highly of herself and her abilities -- sometimes too highly. In battle, Avery uses a whip.
Birdie is the second youngest of the four Black Moon sisters. She is a little vain, and is usually the last sister to want to do battle with the Sailor Scouts. Birdie's power is Dark Ice.
Catsy is the youngest of the four Black Moon sisters. She is also the most aggressive of the sisters and enjoys battles. Her power is Dark Fire.
Rubius was the head of the Black Moon family. He took orders from Wiseman, and would then send the Black Moon sisters to do the work. Rubius was not sympathetic to failure, and was usually putting the sisters down for not completeing their tasks.
The Four Generals of Queen Beryl