LA!Lyn build?

Her Atk/Spd Bond seems great for a dual phase build, but you can also consider Fury for the additional bulk. Then you can run Quick Riposte(although if you give her an Owl tome she’ll be able to double a ton without it, so consider that), Vantage, her default Guard or a Breaker skill for example. Her C skill is great for Armor Emblem but you can run whatever the team needs. Also, Distant Defense seems a great option for Sacred seal, but you can run anything you need too. Quick Riposte, +def, +res...

Congrats on pulling her btw!