This Scale has been somehow taken from the carapace of the Tarrasque It looks almost transparent to the eye. It is large enough to hold in both hands. The Tarrasque's scales are what give the Tarrasque it's antimagical properties. While this scale is exposed on your person you gain Tremorsense out to 10 feet. The Scale also has two more properties.

Antimagic Scale:

As an action you can attack the scale AC 24. You have advantage on this attack if you are holding the scale while attacking it. On a hit the scale takes no damage and produces an Antimagic Field in a 15 foot sphere centered on the scale until the start of your next turn.

This property can also be used as a reaction to being subjected to a magical effect that forces you to make a saving throw. If you miss the Attack on the scale, you have disadvantage on the Saving Throw of the triggering effect.

Blindsight Scale:

As a Bonus Action you can put the scale up to your eyes to gain Blindsight out to 20 feet. If you already have Blindsight, it is extended by 20 feet. Using this property requires at least one free hand. You can dismiss this effect at any time.

You cannot use both properties in the same round.

Notes: Sense: Tremorsense, Sense: Blindsight