Sailor Moon R Episode 72 English Dubbed Episode Title:Rubeus the Heartless: The Tragic Sisters.Episode Description:Rubeus tries to destroy the Sailor Guardians once and for all by giving the "Black Moon Stick" to the remaining Specter Sisters so they can kill them. In the midst, however, Chibiusa accidentally sees the girls transform, revealing their identities as the Sailor Guardians, and that Usagi, as Sailor Moon, holds the Silver Crystal.