Soul Interrogation

Some people are capable of hiding the truth written on their faces. Some of them are trained to not give away a single twitch, sigh, or gulp that would imply guilt. Some utilize magic and unique skills to hide this information. But no matter what, their Soul shall tell the earnest truth.

With this feat, you gain the following benefits:

• You gain expertise with the Insight skill and have advantage on Insight checks to tell if someone is lying.
• You gain the ability to cast Zone of Truth without expending a spell slot a number of times equal to your Proficiency Modifier per Long Rest.
• You gain the special vision Soulsight, allowing you to see living creatures' souls and detect the type of creature they are within 30 feet of yourself.
• When seeing someone's soul via Soulsight, you can spend 1 minute performing a ritual to attempt to enter the realm of their Soul, forcing them to make a Deception check versus your Insight check. If you beat their roll, then you can speak directly with their Soul, and you can ask up to five questions to the soul, although they cannot retain new information.
• While within the realm of their soul, you can also place new information for their mind via spells like Encode Thoughts and [spell/Modify Memory[/spell].
• The target doesn't have to be aware you are attempting the ritual, however, they must remain in the radius of your Soulsight and you must maintain concentration for the full minute.
• Following a success, you will be incapacitated for as long as you remain within the realm of the soul.
• If you're facing a creature whose soul ream you've entered before, they are vulnerable to all mental spells you cast.