The Holy Grail's Mystical Power: Moon's Double Transformation

The inner guardians reach the fallen Uranus and Neptune, whose pure hearts have hardened into talismans that cannot be given back. Eudial snatches the two treasures and pens the guardians behind flames, but Setsuna arrives, transforms into Sailor Pluto, and reveals that the orb on her staff is the third talisman. Reclaiming the others, she reunites the pure hearts with their owners, and the three talismans together conjure the Holy Grail.

Sailor Chibi Moon douses Eudial's fire with Luna P, and the chase resumes. Eudial glues the inner guardians in place, but Sailor Moon slips past and races her for the Grail. Reaching it first, she snuffs out the flames and rises as Super Sailor Moon, deflecting Fire Buster II to fling the witch from the cathedral. Fleeing in her station wagon, Eudial is mocked over the radio by Mimete, who has cut her brakes and filled the car with snails, and she plunges to her death over a guardrail. Drained by the Grail's power, Sailor Moon reverts and collapses, leading the outer guardians to doubt she is the Messiah and to keep searching.

Professor Tomoe, told that Sailor Moon cannot hold the Grail's full might, hints he has someone who can, foreshadowing Hotaru, who debuts here alongside Super Sailor Moon and the Holy Grail. The manga instead has the Grail appear when Sailor Moon, Chibi Moon, and Tuxedo Mask join hands, and does not kill Eudial in this manner. The episode restores Sailor Pluto for the rest of the season and shows her transformation for the first time. The CWi dub aired it as "The Purity Chalice" on July 11, 2000, after the Japanese broadcast on October 22, 1994.