L3 is a boss. Sounds like you have a lot of use for her between teams and the ship.
All the max HP gains she gets with her basic could make her a pain in the ass at R-whatever. Let me know if you end up giving her a relic, as I may do the same down the road.
My zYoungHan tears it up at R5 with the massively improved damage and all those assists. I doubt many people have gotten L3 to that point and reported their findings, so you never know. Again, let me know if you do it.