Amulet of the Crawling King

This item depicts a image of a alien or occult like being on its face. It is unknown if this amulet is inherently evil or not but the effects allow the tracking or hunting of some of the worlds most vile creatures. Once per short rest, the wearer of this amulet may cast Detect Evil and Good with the following changes:

For the duration, you sense the direction of any Aberration, Beast, Elemental, Fiend, Monstrosity or Undead within 1 mile with a INT of 4 or greater of yourself. You also sense whether the Hallow spell is active in the radius of this effect. 

This Amulet will vibrate and glow a green color from its eyes with a intensity related to the proximity of one of the listed creature types. 

Notes: Any class may attune to this item.