I have a decent quantity of Fire Emblem badfic, all of which is NSFW and NSFB:

Never Too Young: The pairing is Orochi/Kaden!Kana in a BDSM context. Kana is stated to be 10 in the fic and has furry traits, so it's pedophilia. Seriously, be careful.

Meant To Be: Pairing is M!Corrin(Kamui)/Takumi, which, while possible in canon, is sibling incest. It also features cis male pregnancy, beige prose, and is filled with technical errors.

Dragon Heat: Another M!Corrin/Takumi fic, this one involving Corrin's dragon form. Corrin also has two of a certain bit of anatomy, eash of which is stated to be larger than an archer's arm. Takumi is also highly fetishized trans male. HerrWozzeck might be doing a spork of this one, however.

I also have two fics I would prefer to handle myself, once I get permission. They are both NSFW and NSFB:

A Pair Of Dragons: This is a Nowi/Nah fic, which means it's mother/daughter incest between two characters who appear underage. I intend for this to be my first mission.

Futanari Goddess: It's F!Robin/Every female character from both Awakening and Fates, except they've ALL been turned into heavily fetishized trans characters. That includes characters who are underage, related to Robin, or otherwise should not be paired with Robin. On top of that, there's frequent terrible anatomy, including proportions that really shouldn't be possible and vary wildly throughout the fic without any discernible explanation. The "plot" is complete nonsense, Robin and Corrin have both been turned into utterly uncanonical deities, and there is not a single character whose canon self could be on the same continent as their portrayal in this fic. This fic is extremely awful, and has personally offended me, so I would prefer to take it out myself.