Who said "Death is just another spell waiting to be cast."?

This quote is attributed to Agatha Harkness.

Death is just another spell waiting to be cast. - Agatha Harkness

"Death is just another spell waiting to be cast."

Agatha Harkness Death

"Well, hello, dearie."

"The real question is, what are you willing to do to keep what you love?"

"Power isn't given, it's taken."

"I'm not a witch. Well, not a traditional one anyway."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."