If you
morm want him to die, I think he should. It would be most credible so. And I think someone else should possibly die too. I don't want to kill any of the three currently in my care - Orin's death would be too tragic,
Finduilas wouldn't have taken it kindly if I killed Lea and I honour her memory, and I promised to her I'd take care of Ash so it would be quite grotesque if I killed him off.
Anyway, I think Toby is the obvious kill choice, but if someone wants to kill their character, they should go for it, in my opinion. The defenders shouldn't get through this too easily.