Hotaru, as Sailor Saturn, has the power to destroy a planet. Her abilities are activated when the three talismans of Sailor Uranus, Neptune, and Pluto come together and resonate. Saturn's awakening, on the other hand, finally rescued the earth by forcing Master Pharaoh 90 to flee to his old universe before Earth was destroyed. However, this does not mean that Saturn is responsible for saving the world, as she only did so because there were no other options left.
In addition, Saturn has been shown to have the ability to use her powers in other ways as well. She has been known to create objects such as weapons out of thin air or even entire planets. However, it should be noted that these powers have never been used during actual combat situations but rather only for self-defense or simply to do something interesting. In fact, one could say that Saturn has always been more of a leader than a fighter due to this trait. Even so, her power level is still quite high considering her role as a guardian goddess.
Now, as for whether or not Saturn actually destroys worlds you need to understand that this power is only active when all three talismans are joined together. Thus, unless you possess all three items, Saturn will not be able to use her power even if you get close enough. In addition, while it is true that she has the ability to destroy planets, this does not mean that she intends to do so.
Sailor Saturn died as well, and she was resurrected as a human girl named Hotaru Tomoe. She will never be woken unless the worst happens again. Saturn's abilities have been latent within her since birth. She can become sentient with them when she uses her powers, but it requires a lot of energy and there is no telling when that would run out.
So yes, Sailor Saturn dies in Crystal.
Sailor Saturn, Her father converted her into a cyborg, as if her childhood wasn't already insane enough. Hotaru is a death and destruction sailor. She has the ability to create massive force barriers that protect her and her squad. People fear Sailor Saturn, who is renowned as the strongest protector. Even with her cybernetic limitations, she is still considered by many to be the best in the world.
Saturn's power comes from her emotions; specifically her rage. When she is angry, she becomes even more powerful. This makes sense because anger is one of the most effective ways to boost your strength. By adding fury to her attacks, Saturn increases their damage potential exponentially. As long as she keeps getting angry, she will always remain strong.
Also, it should be noted that Saturn has a master at making robots. If he can build them then so can I.
Sailor Saturn is the strongest hero there is due to how unique her role is in the universe. Most characters only have one role, but Saturn plays two: fighter and engineer. There are very few heroes who can do both well, let alone fairly. Even though she works for a military organization, Saturn has the freedom to use her powers however she sees fit. She is not bound by rules or regulations, which is why she is able to create attacks that no other hero can replicate.
To find Hotaru, Sailor Uranus joined forces with Sailor Neptune, Sailor Pluto, and Super Sailor Moon. She consoled Super Sailor Moon, who was unsure how to deal with this threat, in an elevator. She informed her that she, too, was terrified since she had been alone for a long time on her homeworld as a lone Guardian of the Heavens. Together, they fought the evil forces of the planet Saturn until it disappeared back into space.
After the defeat of Saturn, Sailor Uranus went back home to handle some business there while Super Sailor Moon stayed in Earth's world to train new Guardians. When these new recruits showed promise, Super Sailor Moon would travel to another world to help them in their fight against evil. This way, she could continue to learn about new threats while still helping out those in need on Earth.
As time passed, more Guardians were recruited from around the world. There were young people who became heroes by saving others even before they knew what it meant to be a Guardian. Some received training from experienced warriors, while others worked on their own skills until the moment came when they could protect the universe as well.
Since its creation, many mysteries have been revealed about the moon. It is known now that Saturn was one of five planets that used to orbit Earth before forming the Solar System. As time passed, these planets changed direction and moved away from Earth, which is why we now have moons orbiting them instead.
He utilized Pharaoh's magic to try to resurrect her. In exchange, he lost his humanity and become evil. After preventing Sailor Saturn from destroying the planet at the conclusion of Infinity, Sailor Moon is reincarnated as a newborn with no cybernetic components. This allows her to be given a pure soul which enables her to return home.
In the final episode of the series, it is revealed that Queen Beryl used this same technique on Saturn to create her own personal bodyguard: Vexenatrix Vellum. When Vexenatrix defeats Sailor Moon, she assumes her form so Queen Beryl can revive her with Saturn's heart (which was destroyed when he turned evil). Once revived, Vexenatrix attacks Sailor Moon but is defeated by her sister's Moonlight Knight Starseed. Before she dies, she tells Sailor Moon that she will see her again someday.
Saturn then returns to being an adult in order to stop Beryl from reviving him. However, she is too late and he is captured by Gemini Saga who uses his power to create an army of baby Saturns that will destroy Earth. To save everyone, Sailor Moon uses her powers to transform back into a newborn girl and absorb all of the babies including Saturn. With no one left to revive, Beryl fails and the universe returns to normal.
As Sailor Saturn, she possesses the ability to destroy a whole planet or galaxy. As Mistress 9, she has the power to bring about silence and devastation, destruction and nothingness, death and rebirth. She can also transform herself at will into any weapon used by her followers.
Sailor Saturn was originally sent by Queen Metaria to defeat Princess Serena of the Earth kingdom. When this mission was completed, Saturn returned to space on an asteroid called "Zeto." However, when King Endymion of the Moon Kingdom seeks out help from Princess Serena against his brother King Kairi of the Earth kingdom, Saturn again takes up her quest to protect the universe.
In the final episode of the series, "The Lost Canvas," Saturn joins her friends on their quest to stop the evil Black Moon Clan who have taken over the Moon Kingdom. During the battle with the clan, it is revealed that Saturn was pregnant at the time of her death and she gives birth to a daughter she names Luna before she passes away. The episode ends with Luna gazing up at the moon smiling as she says "Mommy's not gone yet."
Later in the series, it is revealed that Saturn has been reborn within Princess Serena. Now calling herself "Queen Saturn," she uses her powers to protect everyone including Princess Serena's child Luna.