Code of the Black Knights. It is the definition of what your looking for.
Fair warning though, gameplay is a bit gimmicky (but your playing Bloodlines so that really doesn’t apply), difficulty is definitely more on the hard side (even on the easier difficulty), and there are a couple side effects of the hack’s advanced nature (“bugs” that aren’t really “bugs”, they just happen). Read up the hack’s readme for info on those.
ALSO, PLAY THE HACK BLIND. If you really need to see it to figure out if you want to play it, DONT WATCH PAST LIKE, CHAPTER 4 at maximum.
Edit: FIRE EMBLEM - Code of the Black Knights: Decisive Edition (30 chapters)