Magic Items

Weapon (any sword), very rare (requires attunement)

You gain a +2 bonus to attack and damage rolls made with this magic weapon.

The sword has 1d8 + 1 charges. If you score a critical hit against a creature that has fewer than 100 hit points, it must succeed on a DC 15 Constitution saving throw or be slain instantly as the sword tears its life force from its body (a construct or an undead is immune). The sword loses 1 charge if the creature is slain. When the sword has no charges remaining, it loses this property.

Wondrous item, very rare (requires attunement)

This dazzling helm is set with 1d10 diamonds, 2d10 rubies, 3d10 fire opals, and 4d10 opals. Any gem pried from the helm crumbles to dust. When all the gems are removed or destroyed, the helm loses its magic.

You gain the following benefits while wearing it:

You can use an action to cast one of the following spells (save DC 18), using one of the helm’s gems of the specified type as a component: daylight (opal), fireball (fire opal), prismatic spray (diamond), or wall of fire (ruby). The gem is destroyed when the spell is cast and disappears from the helm.

As long as it has at least one diamond, the helm emits dim light in a 30-foot radius when at least one undead is within that area. Any undead that starts its turn in that area takes 1d6 radiant damage.
As long as the helm has at least one ruby, you have resistance to fire damage.

As long as the helm has at least one fire opal, you can use an action and speak a command word to cause one weapon you are holding to burst into flames. The flames emit bright light in a 10-foot radius and dim light for an additional 10 feet. The flames are harmless to you and the weapon. When you hit with an attack using the blazing weapon, the target takes an extra 1d6 fire damage. The flames last until you use a bonus action to speak the command word again or until you drop or stow the weapon.

Roll a d20 if you are wearing the helm and take fire damage as a result of failing a saving throw against a spell. On a roll of 1, the helm emits beams of light from its remaining gems. Each creature within 60 feet of the helm other than you must succeed on a DC 17 Dexterity saving throw or be struck by a beam, taking radiant damage equal to the number of gems in the helm. The helm and its gems are then destroyed.

This monstrous batiri goblin mask is made of lacquered wood and its gems carved to resemble
numerous unblinking eyes. When a gem is used, the surrounding wood closes around it like an eyelid. When found, the helm has 6 diamonds, 5 rubies, 17 fire opals, and 34 opals.

Bahamut's Blessing (Blessing of Magic Resistance)
Supernatural Gift - Blessing

You have advantage on saving throws against spells and other magical effects.