Sailor Pluto is one of the four Outer Senshi of the Solar System, as well as the guardian of the Space-Time Door, and was the sixth Sailor Senshi to be introduced in the manga. Her civilian identity is Setsuna Meiou, or Trista depending on the dub you follow. Her attacks are based around time, the underworld, space, darkness, death and precognition, her powers granted by her Garnet Orb. This is the original depiction of the character created by Naoko Takeuchi.
She is voiced by Veronica Taylor, who also voiced Ash Ketchum.
Legends of the Multi-Universe (Menslady's Story)
Unlike Sailor Uranus and Sailor Neptune, who are rather tough, Sailor Pluto has a rather serene, gentle attitude. Still, she does not let it overtake her when there is a battle to be won and there are lives to be saved. And now that there's a war going on, and Angewomon and Myotismon are to be protected in order for their side to win, Sailor Pluto is willing to go at the enemy with everything she has if she has to!
Pluto Dead Scream - summons a large orb of space-time energy
Pluto Time Stop - Sailor Pluto can temporarily stop time
Pluto Dark Dome Close - Sailor Pluto uses her staff to seal dimensional gateways
Pluto Eternal Make-up - allows Sailor Pluto to become Eternal Sailor Pluto
Pluto Chronos Typhoon - summons a very strong windstorm of space-time energy