Cage Soul

You snatch the soul of a humanoid as it dies and trap it inside a tiny cage. A stolen soul remains inside the cage until the spell ends or until you destroy the cage, which ends the spell. While you have a soul inside the cage, you can exploit it in any of the ways described below. You can use a trapped soul up to six times. Once you exploit a soul for the sixth time, it is released, and the spell ends. While a soul is trapped, the dead humanoid it came from can’t be revived.

Steal Life. As a Bonus Action, drain life energies from the soul to regain 2d8 hit points.

Query Soul. As a free action,  you can ask the soul a question and receive a brief telepathic answer, which you can understand regardless of the language used. The soul knows only what it knew in life, but it must answer you truthfully and to the best of its ability.

Borrow Experience. Use a Bonus Action to bolster your capabilities with the soul’s life experiences, making your next D20 roll with Advantage.

Eyes of the Dead. You can use an action to name a place the humanoid saw in life, which creates an invisible sensor somewhere in that place if it is on the plane of existence you’re currently on. The sensor remains up to 1 hour. You receive visual and auditory information from the sensor as if you were in its space using your senses. A creature that can see the sensor (such as one using see invisibility or truesight) sees a translucent image of the tormented humanoid whose soul you caged.