[@SouffleGirl123]
Okay, I don't have a lot of time to really respond here as I need to head to bed soon, but...

The sheet, is mechanically and grammatically fine. In fact a family of demon hunting elves could work great. I think its a good sheet...but as it stands, I'm not sure it makes a good [i]elf[/i] in the setting.

There is not an Elf in the world that doesn't have a bonded fairy of some sort, since an Elfs entire reason for existing is to protect their fey friends. It's considered a [i]huge[/i] social and cultural taboo for an Elf not to have one. Think of a bonded fairy as sort of, a lifelong best friend or something similar. They'd overall be shunned and frowned upon by most other elves and they'd probably be constantly harassed by Fairies too.

I believe you mentioned that her family ended up here in the human realm from a magical mishap? I would like to mention, if it wasn't stated earlier that Fey are pretty inherently magical beings that sort of overwrite the laws of whatever realm they're in with their own. It'd be extremely easy for her ancestors to return to the Cosain forest or the realm.

Its fine if she doesn't, and fine if you do want her family to stay in the human realm for 'generations' as its ascribed to the long lived elves, but even if her family does, her family would still likely at least take some effort to get her a bonded fairy. You don't have to create an entirely new character here if you don't want too, but I'd like at least some mention of one and whether or not they're joining her on her demon hunting or not.

And also, as previously stated all Elves are capable of accessing the 'Leargas', a sort of...hm, ability that allows them to briefly harness all the knowledge and experience of their ancestors. Its dangerous, but all elves of the Cosain forest are capable of it. I'd like to really know her skill in accessing it or using it, if any.

Those are the main criticisms I have at the moment. Lesser so, is the crossbow...I'm gonna say I think its a bit too low tech here, but I think it could work if you don't mind it being a bit on the weaker side technologically speaking.