Axiomatic Veracity Module

The mechanical keycard appears to be made of a bronze-like material, but is immutable to any effect that attempts to alter its form. Moving the four-inch piece of metal with any velocity causes the sound of clockwork whirring to resonate from its base, but has no lasting effect on its function. 

While attuned to the Axiomatic Veracity Module, you can use an action to twist the base and activate the item, naming a target. The next time your target lies in the next minute, you are telepathically notified of their deceit.

Once you have used the Module in this way, you cannot do so again until your spend time realigning the mechanism as part of a short or long rest.

Notes: Lawful aligned creature