The main change is an increase in level from PL9 to PL10, I dropped Nightbird's Darkness Control powers as well as turning her into more of a weapon master with some detective skills.
NIGHTBIRD
Real Name: Imogen West
Identity: Secret ID
APPEARANCE
Gender: Female
Age: 27
Size: Medium
Height: 5'4”
Weight: 120 lbs
Hair: Ash Blonde
Eyes: Green
POWER LEVEL
Power Level: 10
Power Points: 150
Max Attack: 14
Max Defense: 12
Max Save DC: 6
Max Toughness: 8
ABILITIES
STR: 14 (+2)
DEX: 18 (+4)
CON: 16 (+3)
INT: 12 (+1)
WIS: 16 (+3)
CHA: 14 (+2)
COMBAT
Attack +8 (Melee +10, Ranged +8, Quarterstaff +14)
Damage: Unarmed +2 (Bruise); Quarterstaff +6*
Defense +12 (+4 flat-footed)
Initiative +8
* Improved Critical 18-20
SAVES
Toughness +8 (+5 flat-footed)
Fortitude +8
Reflex +10
Will +10
SKILLS
Acrobatics 8 (+12); Bluff 8 (+10); Computers 5 (+6); Concentration 5 (+8); Disable Device 8 (+9); Escape Artist 8 (+12); Gather Info 8 (+10); Investigate 9 (+10); Knowledge -Popular Culture 8 (+9); Knowledge -Streetwise 8 (+9); Knowledge -Current Events 6 (+7); Medicine 3 (+6); Notice 8 (+11); Search 8 (+9); Sense Motive 8 (+11); Sleight of Hand 6 (+10); Stealth 8 (+12); Survival 5 (+8)
LANGUAGES
English, Russian
FEATS
Equipment (3 or 15eps); Acrobatic Bluff; All-out Attack; Ambidexterity; Assessment; Attack Focus, Melee (2); Defensive Roll (3); Dodge Focus (3); Diehard; ; Elusive Target; Evasion (1); Improved Critical - Quarterstaff (2 or 18-20); Improved Initiative (1); Power Attack; Grappling Finesse; Redirect; Sneak Attack (1); Takedown Attack (1); Taunt
"Quarterstaff Fighting Style" - {Attack Specialization - Quarterstaff (2 or +4 attack); Defensive Attack; Follow-Up Strike; Improved Trip; Improved Disarm (1); Stunning Attack}
POWERS
Super Senses [3] (Dark Vision, Danger Sense - Visual)
EQUIPMENT
Costume (Toughness +2; subtle) (3eps)
Quarterstaff (Strike 4; Feats Mighty; Split Attack, Subtle (collapsible)) (7eps)
Mobile Phone (1eps)
Misc Items (4eps to spend as needed)
MOVEMENT
Base Move: 30 ft/60 ft/120 ft
Leaping: 10 ft/5 ft/5 ft
COMPLICATIONS
GUILT - Imogen feels guilty for travelling overseas for so many years and leaving her Mother alone.
RESPONSIBILITY - Imogen wants to make her neighbourhood a better place like the neighbourhood that she grew up in.
FEAR - Imogen is scared of snakes.
IDENTITY - Imogen is very protective of her secret identity as she does not want any harm to happen to her Mother.
SUMMARY
Abilities 30 + Skills 32 (128 ranks) + Feats 35 + Powers 3 + Combat 32 + Saves 18 – Drawbacks 0 = 150 / 150
BACKGROUND
As a child Freedom City was a great place to grow up in and as Imogen tried as many activities as possible and somehow her mother always found a way to allow her daughter to take part in the latest fad. It was at a martial arts camp that Imogen first met Dawn. Dawn was one of a number of overseas instructors brought in to provide training to the students. Although Dawn was a lot older than Imogen they seemed to click and Dawn was soon providing extra one-on-one training with Imogen and pushing her limits.
Finishing school Imogen traveled overseas where she encountered Dawn again and the next couple of years were like a blur as she traveled around Europe and learnt how to use a quarterstaff When she spoke to her Mother Chloe was told that everything was fine.
Enjoying her time in Europe Imogen stayed there continuing her training and she started to provide lessons to young children. Imogen also spent nearly a year working at Dawn's younger brothers Detective Agency in London and to this day still denies that she was infatuated with William Drummond-Clayton. Imogen started off working in the office asking the phone and doing the filing and paperwork but quickly convinced William to let her "pound the beat" with him. Watching and learning Imogen gained a good understanding of detective work and a sense of justice.
After nearly 10 years Imogen decided to return home to Freedom City as she missed her Mother and Europe had lost its shine a long time ago. Returning home Imogen was surprised to discover that things were not fine as her Mother had kept telling her. The neighbourhood had regressed and had no resemblance to her memories. It was overrun with petty criminals, thugs and drug dealers and worst of all her Mother now looked and seemed very old. Wanting to look after her Mother and to make a difference for the local children, Imogen started to offer lessons in a local hall. It was not too long before she was approached by a couple of brutish looking men whom suggested that it would be a good idea for her to give them a share of her earnings. At first refusing, the thugs then threaten to mess up that "pretty little face of hers" and without thinking Imogen grabbed the closest weapon and drove them off.
It was after this encounter that Imogen decided that someone (her) needed to do something to make the neighbourhood safer for everyone. Imogen quickly learnt that the police force could no longer be trusted and that she would need to hide her identity if she wanted to protect everybody.
Vilgax was the main villain of the Ben 10 series and spent most of the first season off camera sending various minions and robots to reclaim the Omnitrix. In fact you could trade his ranks in equipment above to the same in minions. Vilgax's goal was to get the Omnitrix and then use it to create an army capable of transforming into any alien to conquer the known universe. 
