To start with, I feel like Sakura would probably pick speed from the blessing? Just since she is generally more support oriented in her personality than using brute force most of the time if anything. But yeah, Sakura will probably initially help on the front lines, so to speak, making use of her cards offensively against the robots. Probably mostly restraining them with Windy, Wood, or using Thunder against them? Specially if she sees the robots going for her friends.

But once they set up an area for the medics, she'll help out there, using her ALASTAIR healing (major) in helping out her bff Sieglinde. She'll also be able to help offensively in defending the medics too if necessary. This will probably be how she ends up playing support, more than going after the nodes. Maaaybe playing escort to a few nodes on the side where things quiet more if there's a chance between it all if someone needs?

Otherwise, relaxing. They have all earned it and then some. Someone stop the barely teen from exhausting herself helping with the rebuild until they leave for the next crisis. I mean mission.....