Magic Items

Staff, rare (requires attunement by a Bard, Cleric, or Druid)
This staff has 10 charges. While holding it, you can use an action to expend 1 or more of its charges to cast one of the following spells from it, using your spell save DC and spellcasting ability modifier: cure wounds (1 charge per spell level, up to 4th), lesser restoration (2 charges), or mass cure wounds (5 charges).
The staff regains 1d6 + 4 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff vanishes in a flash of light, lost forever.

Wondrous Item, varies
You can use an action to blow this horn. In response, warrior spirits from the Valhalla appear within 60 feet of you. They use the statistics of a berserker. They return to Valhalla after 1 hour or when they drop to 0 hit points. Once you use the horn, it can't be used again until 7 days have passed.
4d4 + 4 berserkers

+2 Stone Plate (Table 1) Heavy Armor, Very Rare. You have a +2 bonus to AC while wearing this armor. This item is found on Magic Item Table I in the Dungeon Master’s Guide. This suit of plate armor was created by Cultists of the Black Earth and is fashioned from slabs of stone (instead of metal). The armor resizes to fit its wearer.

Wondrous Item, very rare (requires attunement)
This belt is made from plates of steel embossed with golden filigree connected by metal pins. A fire giants face adorns the buckle. The giant appears to be having a hearty laugh as she wears an enormous smile on her face.
While wearing this belt, your Strength score changes to 25.

Requires Attunement.
You gain a +1 bonus to AC and Saving Throws while wearing this ring.

A Breast Plate +1 made of smoky glass material.

Weapon (warhammer), very rare (requires attunement by a dwarf)
The striking surface of this hammer has been forged into the shape of a gauntleted fist. The haft is a rod of heavy, black adamantine and wrapped in what appears to be spongy, green leather. Affixed to an iron ring on the pommel is a strip of tattered (though indestructible), blood‐stained parchment inscribed with a dwarven battle canticle. When used in battle the hammer reads the canticle aloud in a deep, resonating voice audible to anyone within 30 feet of the weapon. A description of this item can be found in the Dungeon Master’s Guide.

Staff, very rare (requires attunement by a sorcerer, warlock, or wizard)
This staff is carved from a single piece of an unusual, purple wood and topped with a clenched, mithral claw. The claw clutches a green dragon scale the size of a small plate engraved with the elven word for “Oblivion”. The rune glows with a pale, green light and emits wisps of choking, caustic mist. Whoever is attuned the staff is able to speak, read, and write Draconic. A description of this item can be found in the Dungeon Master’s Guide.

Requires attunement

Githyanki Greater Silver Sword (+2 silvered greatsword) [Weapon (greatsword), rare (cannot be attuned by anyone except the original wielder)]
You have a +2 bonus to attack and damage rolls made with this magic weapon.This is a silvered greatsword that, when grasped, tries to talk to the wielder but is unable to and no ability or magic allows the wielder to speak to it. It will only speak to the original wielder.