Help With Surname Needed!

1: ‘NAMING X’ Form

I will warn you now. This is for a roleplay, not a story, though I am an author/writer.

Genre of [name_u]Story[/name_u]: Paranormal/Supernatural, [name_f]Fantasy[/name_f]…

Time Period/Location: Unknown. The OP hasn’t said yet.

Character Description: Personality is unknown as of yet, but she glows in the dark and has power over poison, I guess. I’m not entirely sure yet, but she is a “poison glow” so I named her Sarin. I just need a surname.

Brief Plot: Sarin is one of a few glows— rare people that glow in the darkness. But she is special in that she is the only poison glow.

Who named the character: It was a coincidence that her mother picked the name “Sarin” before she died…

Immediate Family (if relevant): This information is unknown as of yet.

[name_m]Don[/name_m]’t Suggest These Names: Anything that has two or less syllables, and can’t be a surname/isn’t a surname

Anything else?: I know I haven’t given much to go on. Can I have names with dark/intelligent meanings? Or maybe some surnames that aren’t too common/mainstream? Thanks in advance.