LA Lyn

Wait. At least until you see what's on the other banners.

LA! lyn is pretty good and the only blue armored mage so go for her if u really want her

BLUE ARMOUR MAGE! It'd be dumb to pass her up

Do you feel bad about missing Halloween Henry or Christmas Tharja for your armor team? Then go for Valentine Lyn. Don't care about armors? Skip.

Only if you want a rushdown squad of Armored units to make GHB quests easier

She's pretty good, but I'd wait to see other banners since we all get a new blue armor unit for free.

No harm in waiting, but to give another perspective I pull every time I collect 9 or so orbs and managed to pull her so I get how tempting it can be. I also pull because at the end of the day I need more SI fodder and if there are 5 star focus units I wouldn't mind getting then why not. Maybe decide what build you want and see if you even have the necessary skills.