SAILOR PLUTO

   In my opinion, I would say that Setsuna is about the 6th powerful Senshi.  I believe this because I really don't see her do a lot of attacking in the Japanese series.   However, her dead scream is quite powerful, and she can stop time, so those are definately pluses in her corner.
    She is a blunt and cold girl. She has trouble with children, but promised to take care of baby Hotaru in the Sailor Stars season. She is also the oldest of the team. She has only one true friend, Rini, who calls her "Puu." I would say she's not really a sociable person, she's more of a loner.
    As Sailor Pluto, she is the guardian of time. She has seen everything in the past and everything in the future (maybe that's why she is a little cold.  I myself wouldn't want to see the past,  nor the future). Her staff is a key to the door of time, which she is forbidden to close.   She is also forbidden to stop time.  She is also one of the carriers of the 3 talisman, her's being the Garnet Orb, which is attached to her staff.

BASIC INFORMATION

Name: Setsuna Meiou
N. American Name: N/A
Birthday: October 29
Blood Type: A
Astrological Sign: Scorpio
Favorite Color: Dark Red
Favorite Gemstone: Garnet
Hobby: Shopping
Favorite Food: O-chan (green tea)
Least Favorite Food: Eggplants
Favorite Subject: Physics
Least Favorite Subject: Music
Has Trouble With: Cockroaches
Strong Point: Sewing
Dream: To be a designer

ATTACKS

Deadful Scream: 
I am not exactly sure what it does, it just looks cool and powerful :o)  She swishes her staff a little to the left and then the right and says "Deadful Scream".  Some kind of mist twirls around her and the staff, she turns around, and thrust out her staff, and spews forth a purple ball towards the enemy.

I know about another attack, but it's really a defensive attack.  It's the time stop thing.   I am not sure what exactly she does.  All i know is that it stops time.