Take name

You compel a creature to tell you its name.

The creature makes a wisdom saving throw and on failure reveals its name (Automatically fails on any creature without an individual name) or with an int score lower than 4 any creature whos name you already know takes a minus 3 to the roll.

When you get the name of a creature like this you gain advantage on persuasion, intimidation and deception checks against it.

A creature re-rolls at the end of each turn to break this effect if it fails 3 or more of these checks then you also gain advantage on attacks against it and it forgets its own name for 1d4 hours.