Amethyst Dragon Scale

This horned scale of glossy gems has horns and a skull-like mien. The scale reshapes to fit the face and head of a wearer attuned to it. While you are wearing the scale and attuned to it, you gain the following benefits.

Gem Absorption. You have resistance against force damage. If you already have resistance to force damage from another source, you instead have immunity to force damage. If you already have immunity to force damage from another source, whenever you are subjected to force damage, you take none of that damage and regain a number of hit points equal to half the force damage dealt.

Draconic Majesty. While you are wearing no armor, you can add your Intelligence bonus to your Armor Class.

Gem Breath. If you have a breath weapon that requires rest to recharge, it gains a recharge of 6.

Gem Sight. You gain darkvision out to 60 feet, or to an additional 60 feet if you already have that sense. Once per day, you can gain blindsight out to 30 feet for 5 minutes.

Gem Tongue. You can speak and understand Draconic. You also have advantage on any Intelligence check you make against Amethyst dragons.

Legendary Resistance (1/Day). If you fail a saving throw, you can choose to succeed instead.

Gem Spellcasting. You can cast Blink and Sending once a day (save DC 20, or yours whichever is higher).

Notes: Resistance: Force, Bonus: Unarmored Armor Class, Sense: Darkvision, Sense: Blindsight, Language: Draconic, Advantage: Intelligence Ability Checks, Bonus: Legendary Resistance, Buff