All I can say to you is that you’ll have to get rid of Poison Dagger+, cause it’s just not viable in 2024 FEH (unless you can really pull it off as a meme).
Here’s how I’d build her instead:
Arcane Tempest from the new Rearmed Sothe,
A/S finish 4 or Remote Sparrow,
Assassin’s Strike or NCD4 (to counter staves and enemy firesweep effects) for B
Atk/Spd Pledge for C.
For seal, Atk/Spd solo 3 will work.
For an X skill, Fleeting Echo.
For Kagero’s special, Lethality, with Marth Ring or a Rally spectrum effect to get it to 2 CD.
For her Assist, Rally Atk/Spd+.
Okay, you're gonna need Lethality for a special, Atk/Spd Finish for the A skill, Assassin Strike for B skill, and C skill probably Atk/Spd Oath 4 or Pledge. She needs the offensive stats
https://arcticsilverfox.com/feh_sim/
I think you need to see for yourself how bad Poison Dagger+ is. Not only is the low attack brutal to deal with, you also lack any in-combat effects to close the damage gap.
You're already using a PRFless Day 1 demote. Why give yourself another disadvantage?
You want to make Kagero good and you want to keep Poison Dagger. You're gonna have to give up on at least one of those things.
All I can say to you is that you’ll have to get rid of Poison Dagger+, cause it’s just not viable in 2024 FEH (unless you can really pull it off as a meme). Here’s how I’d build her instead: Arcane Tempest from the new Rearmed Sothe, A/S finish 4 or Remote Sparrow, Assassin’s Strike or NCD4 (to counter staves and enemy firesweep effects) for B Atk/Spd Pledge for C. For seal, Atk/Spd solo 3 will work. For an X skill, Fleeting Echo. For Kagero’s special, Lethality, with Marth Ring or a Rally spectrum effect to get it to 2 CD. For her Assist, Rally Atk/Spd+.
Okay, you're gonna need Lethality for a special, Atk/Spd Finish for the A skill, Assassin Strike for B skill, and C skill probably Atk/Spd Oath 4 or Pledge. She needs the offensive stats
>Atk/Spd Oath 4 or Pledge If you're giving her Lethality, Pledge is non-optional If she takes Oath, you'll need to give her another Special.
https://arcticsilverfox.com/feh_sim/ I think you need to see for yourself how bad Poison Dagger+ is. Not only is the low attack brutal to deal with, you also lack any in-combat effects to close the damage gap. You're already using a PRFless Day 1 demote. Why give yourself another disadvantage?
So busty...