Alternative build for Lilina LA

For me I think that any unit with 30 spd base I consider them to be slow so I don't invest on the speed(I have a neutral speed Lilina but I do'nt invest on it). I have Three options: Blade tome/Gronnraven/Gronnwolf.

That crippling speed will limit her to a horse emblem team with full cavalry buffs and power up her bladetome if you want to go for that. Of course if you just want to dedicate her as an anti-horse unit, you can go for it as well. She should have QR to help her double against mages you want to bait, especially ones on horses, like Reinhardt if you want to run the wolf tome. You could also build a raven tome + TA set so she can check both Reinhardt and B!Lyn. You will probably need deflect missile against brave builds though but under normal circumstances you should be able to OHKO both of them on the counterattack.

Well, since you’re thinking about building her differently, you can either go with the Gronnwolf build you mentioned(I’d say it’s worth it if you see a lot of Horse Emblem teams) or a Gronnowl build, with either +spd(so she can reach 34 when fully buffed by Gronnowl, 40 with Hone Cavalry)or +res refine. Since she still has nice resistance, you can try to focus on it while also having extra general bulk thanks to her HP boon. You can also try +Def and double Distant Defense so you can hit pretty decent numbers in both defense and resistance(I’d recommend Quick Riposte here).

The last option is Gronnraven which will benefit from the +HP against both Reinhardt and Brave Lyn and will allow you to use her as a direct meta counter.

If you don't want to invest too many resources just refine her weapon for res and give her TA and G Tomebreaker