Whose death do you think was the most unfair?

As I understand it, the Griffin's heart didn't affect Agrael because he isn't a "pure-blooded demon," but rather has "mixed dark elf blood" or something like that?:confused:

Agrael was a demon worshiper. To be more precise, he was the archdeacon of a demon-worshipping cult within the Clan of Cruel Hearts. Railag even mentioned in a dialogue with Shadia that he was one of them. And the heart only works, as you correctly noted, on pure-blooded demons.

P.S.: I feel the most sorry for Arantir, as he is my favorite character :(