Sister's Prayer

"A small one once prayed for her little brother to get well...

"She cried as he woke, but only the smile was left on her face."

Resurrection

Small violet lights emanating from and mingling around the pair before descending on the one to be revived.

This prayer revives the recently dead at the cost of one's own life.

The revived receives vaguely purple scars where the violet lights hit them.

A purple shine to their eyes in the dark.

Resurrects one person.

Kills one person, who is also the one who even knows the prayer.

Life

Massive. Exchanging one's life for another's is no small matter.

Neutral

Usually depends on who they revived, if the incident is even known of.

Life/Death

The supplicant's life.

Knowledge of the Sister's Prayer.
Knowledge of oneself.

The Sister's Prayer cannot revive anyone who's been dead for over 3 days.

The supplicant must be honest with their prayer, that is- truly seeking to exchange their life for the target's.