You really can't sac her with her own ability? Sorry, did not know that. I was pretty sure that i did it before, but i haven't touched that card for a pretty long time now and there has been a fair number of updates that might changed it. I am also suprised since you can sac other characters (like acolythe of the altar) with their own ability too last time that i checked and her text doesn't state that you have to sac another character than herself. I have to admit that i did not double check though, I only looked at her text which basicly doesn't restrict her from doing it.