erica & the consequences of almost dying in that vault:
it's surprisingly easy to fuck up killing a werewolf. that, or it's just easier than you think to save one from the brink of death. whatever it is, whether it's kali fucking up, or morrell really knowing what she's doing, erica falls in that vault and wakes up days later in morrell's bathtub.
apparently despite working for the alpha pack, morrell wasn't exactly okay with just letting kali slaughter a teenage girl. erica doesn't thank her for saving her life. she stares at her reflection in the mirror—haggard, pale, eyes glowing yellow—and wonders if this was the better alternative to dying.
being an omega is one thing, but being erica is another. she's faulty. a defect. kali had reached in and clawed all the derek out of erica, but in the process accidentally left behind too much of herself. even after kali is killed, the phantom imprint of her claws remain carved into erica's bones.
packless, but still with the ghost of an alpha hovering over her. maybe she should be grateful that this saves her from slowly descending into madness like every other lonely, packless omega. or maybe she should resent the fact that being damaged like this means no other alpha can claim her ever again. kali's left an alpha's imprint on erica's insides, and in her death, has marked erica for life.
tldr; erica's a Special omega bc of Circumstances (the weirdness of the alpha pack and being fucked up by one of them + being on the brink of death then being saved using probably some strange supernatural means) and is essentially cursed to loneliness (forever without a pack). i think she's also got a bit of a peculiar smell as a broken omega, like something that was familiar once but has since been tainted. warped. but she can be a little stronger as a treat, just to balance things out a lil bit. like she could probably overpower a beta if she put her mind to it. but it'd still be kinda close, and she'd still get her ass handed to her by an alpha.