Raven

You are new to the team and are still don't know why they picked you. You don't have any impressive powers (that you know of). You don't have any Robotic parts that can be modified. Hell, you aren't even that good at fighting. All you know is that Raven vouched for you and here you are. You decide to go talk to her to thank her and ask why she advocated for you to join the team. You knock and enter her room (not knowing how she feels about that)