she is special robot created by a powerful being known as the collector. she has a dimensional diamond as a power source but hasn't learned to use it's abilities yet.
she is made entirely of nanotech, meaning she can morph parts of her body into different weapons or tools when needed. now, if she were a normal robot she would've been a superweapon right off the bat but instead the collector took a different approach.
he made an AI that learns just like a human would, but of course a lot faster.
he gave it basic knowledge and then put it into the machine. it waddled around as it attempted to learn to control it's new body
within two years she had learned to speak, fight, fly, and can even calculate the exact trajectory of a planet while only scribbling down a couple numbers on a napkin.
somewhere in between all of that a friend of the collector let her have a defective egg robot he called little timmy, because it was abnormally small. you almost never see them apart now.
recently she was given a spear made by the creator's bladesmith, the end can change shape and it has a weight on the end to balance it out, but to give it offensive capability it has retractable spikes.
she eventually hopes to fight alongside the collector to defend the multiverse, but she still has a lot of training to do.