Leo cast a spell near the end of the episode to make Piper's pain go away.
Leo taking away Piper's pain.
Orbing: Type of Teleportation used by Chris, Leo and Paige.
Electrokinesis(through Trident): Used by Paige (as the Goddess of War) to destroy a piano and to vanquish a Demon. She later used it to attack the Titans several times. Demitrius used it to attack the Goddesses several times. Paige (as Goddess of War) also used it to destroy the ground under the Titans' feet, causing them to fall in Piper's chasm.
Whirling: Type of Teleportation used by Phoebe (as Goddess of Love), Demitrius, Cronus and Piper (as Goddess of Earth).
Fire Throwing: Used by Cronus to kill Finnegan and blast Roland out of Finnegan's Rainbow. He later used it to attack the Goddesses and Chris.
Force Field: Used by the Charmed Ones (as Goddesses) to protect themselves and Roland. Wyatt used it to protect himself from Chris.
Remote Orbing: Used by Leo to orb the sisters and Roland to the sanctuary with the surviving Elders.
Hologram: Used by Paige (as Goddess of War) to create Holograms of Demitrius and Cronus.
Sensing: Cronus sensed that there was still somebody alive Up There and he and Demitrius used it to sense Elders on Earth and Chris' orb trail. Phoebe (as Goddess of Love) could sense a blockage in Piper's spiritual aura.
This episode marks the only instance where Phoebe had a teleportation power while not under the influence of evil.
Chris telekinetically closes the manor door at the end of the episode, continuing the Charmed season finale tradition.
The original ending of this episode showed Chris waving his hand and Leo disappearing. He would then appear in a cage in Valhalla.
During all of Season 5, the Charmed Ones and their associates vanquished 47 demons, 2 titans, 2 darklighters, 3 evil witches, 1 half-demon, 2 mortals, 1 ghost, 1 siren and 1 warlock. That's a total of 59 evil beings.
Rose McGowan listed this as one of her least favourite episodes, saying she disliked the Goddess costumes the sisters had to wear.
Phoebe is the only sister whose hair changes when she becomes a Goddess. Her appearance is based off the classical interpretation of Aphrodite—who was commonly depicted with floor-length golden tresses.
This is the first time the sisters used the power of three without a verbal command or physical contact.
The title of the episode is a reference to the phrase "Oh, my God!".
When Cronus asks the sisters who they are, Paige answers "The Supremes", referring to the American female singing group that was active during the 60's and 70's.
At the end of the episode Phoebe asks Paige if she'll miss being a warrior princess, after having given up the powers of Athena. This is a reference to the TV-series "Xena: Warrior Princess".
Paige ends her 'war game' simulation referencing the 1980s film "Our Wargame".
Chris angrily says the girls are acting like "Goddesses gone wild", a reference to the reality show "Girls Gone Wild".
Piper's quote "It's not nice to piss off mother nature", comes from the Imperial Margerine commercial line "It's not nice to fool mother nature".
When Paige is getting in target practice with the demons she quotes Archimedes and says he was a great warrior. However, Archimedes was a mathematician, physicist, engineer, inventor and astronomer, not a combatant.
When Phoebe is knocked down by Cronus, she's wearing flats. However, when she gets up, she's wearing the same spike heels that she and her sisters wore as goddesses.