The Insanity

This

Insane communication

You’ve dealt with voices in your head for long enough to know how to become a voice in someone else’s head.

You can telepathically communicate with any creature the you know the language of (not including common)

Voices of harming

You know better than anyone how much words can hurt

As an action you can make harmful thoughts manifest in a creatures head this creature must succeed on a wis saving throw (dc = 17) of take one d10 narcotic damage

Rage of insanity

you know insanity has it’s tolls and you use that to your advantage

as an action you cause a target within sight to go into an Insanity induced rage attack the closest thing

Unbreakable mind

You now know how to obliterate even the strongest of mind games

you are immune to necrotic and psychic damage