Arcee

Arcee compensates with speed and aggressive maneuvers, making her one of the most dangerous Autobots around. Moreover, Arcee is a born hunter. She honed her speed hunting turbofoxes with other speedsters, challenging herself to get as close as possible before tagging them with her bow. She's a crack shot with said crossbow weapon, and Ironhide has trained her to use her speed to her advantage in battle, striking suddenly and swiftly and then vanishing away again as fast as she appeared. She is the sister of Elita-One and Chromia.

The events at Tyger Pax created a nagging doubt in Arcee about her abilities. She carries some guilt about Bumblebee's injuries, and part of what drives her is the desire to prove herself, not only in the optics of her friends and comrades, but most importantly in her own. She also carries a standing feud with Lockdown for unknown reasons.[1]

For a time, she used experimental technology that allowed her mind to control three bodies at once! When two of these bodies were destroyed, she stayed out of sight to adjust to the return to single-body status. [2]

Trivia

 * Arcee and her 2 comrads will meet Thomas, Twilight, and their friends in Thomas and Twilight Sparkle's Adventures of Transformers Revenge of the Fallen.