Alright, so a quick bit of bad news first- don’t worry, it’s not that you can’t play it, it’s just that the circumstances are usually… ugly. See, there’s not a single record of a consensual conception of a half-orc. Maybe between a half-orc and someone else, but not from an orc and another race. Now, I do believe it’s perfectly possible that there was a consensual joining between a human and an orc… but it almost certainly happened in secret- otherwise a member of either parent’s cultures would have executed the both of them. It wasn’t exactly a very loving time period.
No, more than likely, either Benedikt or his orcish partner were involved in… well, a “struggle snuggle.” (blame the censors for that turn of phrase.) Mind you, it doesn’t have to actually be that way, but it’s how Benedikt would have had to present it to his fellow men. Like I said- not a very loving or tolerant era. Warcraft’s universe can take a turn for the dark, every now and then.
Now, here’s where it gets tricky, actually presenting this character is a dillemma.
Based on your implications, this character would have been born into a world that loathes her very existence. A world where Thrall’s Horde has only just started to form, if that. This world would have taught her one of two things, even with the Frostwolf’s relatively accepting climate.
Route 1: “You are less than dirt.” If she learns this lesson, well… odds are she’s going to be submissive in the extreme, flinching away from so much as a scowl, because she expects to be beaten and berated just for being a stain on the “honor” (read: purity) of the orcs. Thrall’s Horde would have been a… difficult transition. Not an unwelcome one, but a strange one. She was, after all, taught that if she was worthy of notice at all, she’d done something to “deserve” being beaten. This route, as you can imagine, isn’t the happiest. Or the most comfortable to read, as writer or observer.
Route 2: “Your entire life will be a never-ending Mak’gora. So fight as if you have nothing left to lose.” In this route, your character doesn’t let the racism of the orcs of her era grind her down. Instead, she embraces it- it’s a challenge to cut her teeth on. She struggles, and triumphs, time and again, to uphold the honor of the clan. And while she always faces prejudice, she always strives to exceed expectations. Beyond an honorable death, she refuses to accept anything but the best death possible according to Orcish society.
Well, I said there were two lessons… but there’s a variation on the second route…
Route 2.5: “You are honorless by nature of your birth. So you don’t need to pretend you’re bound by it.” Down this route, she remains confident as in the second route… but embraces the prejudice instead by becoming what they accuse her of being. In this case: an honorless cur born of filthy human blood. So she lies, manipulates, assassinates, and otherwise enacts duplicity to secure herself. Naturally, the Frostwolf do not approve, but she doesn’t care. If the Horde wanted her to be a loyal grunt, then they shouldn’t have forced a self-fulfilling prophecy on her. They wanted her to be a dirty, conniving human-child. And who is she to deny her people what they desire?
Now, as you probably realize, this isn’t the full spectrum of your choices. But I feel like this post is getting obscenely long. So I’ll just leave it at a final note.
Yes, the Frostwolf are less prejudiced… but they had to spend a lot of time sharing space with the Warsong, and some other clans, before Thrall sailed to Kalimdor. And even in the Frostwolves, she would be looked down upon. Not abused, but certainly seen as a burden- and worse, one forced upon them by their very oppressors, the humans of the Alliance… she would be judged, and she would experience hardship, just for having a human parent.