Corpse Eater DOS2

Corpse Eater: As an action, twice per long rest, you can attempt to find out about a dead creature's last moments. As part of the spell's casting you must consume part of the creature's flesh or blood. The character undergoes a Charisma Saving Throw (DC equal to 8 plus the creature's Charisma ability modifier). On a success, the caster gains an insight to the last 60 minutes of the creature's life.

On a failure, the caster takes 1d4 points of Necrotic damage.