In my lunatic conquest, I heart seal'd Nyx into an outlaw for chapter 10. Aside that chapter (where she could use the ballistae), she struggled pretty hard until I gave her a shining bow + arms scroll... but! Now that she does have access to a magical weapon, she's not a bad attacker. She doubled most of the early promoted enemies (who had low RES to boot), so she's become useful!
The fact that outlaw's give +1 MOV when to their lead unit is pretty helpful too.