Magic Items

The tome’s cover pictures a tentacular creature, and the pages are illustrated with scenes from the Far Realm. A creature that possesses it is convinced that they are always being watched.

You gain a +3 bonus to attack and damage rolls made with this magic weapon. In addition, the weapon ignores resistance to slashing damage. When you attack a creature that has at least one head with this weapon and roll a 20 on the attack roll, you cut off one of the creature's heads. The creature dies if it can't survive without the lost head. A creature is immune to this effect if it is immune to slashing damage, doesn't have or need a head, has legendary actions, or the DM decides that the creature is too big for its head to be cut off with this weapon. Such a creature instead takes an extra 6d8 slashing damage from the hit. This blade now hums and vibrates with great energy, and slices through obstacles with the greatest of ease. If the sword does not claim the life of a sentient creature each day, you find that are easily angered and become frustrated by even the smallest obstacles.

Handed down through generations of holy warriors, Oathbinder is a warhammer fashioned from gold, jade, and finished wood. You gain a +2 bonus to attack and damage rolls made with this weapon. In addition, it has all of the properties of a mace of disruption.
While holding the weapon, you can use an action to cast beacon of hope. Once used, this ability can't be used again until the next dawn.

Sentience.
Oathbinder is a lawful good weapon with an Intelligence of 12, a Wisdom of 14 and a Charisma of 14. It has hearing and normal vision out to a range of 60 feet.
The weapon can speak, read, and understand Common and Celestial. It has a strong, feminine voice. It knows every language you know while you're attuned to it.

Personality.
Imbued with the lifeforce of an ancient celestial, Oathbinder is the sworn enemy of fiends and other evil extraplanar creatures. It speaks only when it has something important to say, and can often be openly curt and matter-of-fact when doing so.
Oathbinder is courageous in the face of all that is evil. If its wielder actively chooses to flee from facing an extraplanar evil, such as a demon or powerful undead, and can't provide good justification for doing so, the weapon openly mocks them for their cowardice until the wielder can redeem themselves by defeating a worthy evil opponent.
A protector of life and light, Oathbinder has no patience for those who perform acts spurned by dishonesty and corruption. It strongly protests against any wielder who continuously participates in such actions, and can be very disagreeable when its wielder consistently tolerates others who do the same.

Mace of Disruption.
When you hit a fiend or an undead with this magic weapon, that creature takes an extra 2d6 radiant damage. If the target has 25 hit points or fewer after taking this damage, it must succeed on a DC 15 Wisdom saving throw or be destroyed. On a successful save, the creature becomes frightened of you until the end of your next turn.
While you hold this weapon, it sheds bright light in a 20-foot radius and dim light for an additional 20 feet.

This blade now hums and vibrates with great energy, and slices through obstacles with the greatest of ease. If the sword does not claim the life of a sentient creature each day, you find that are easily angered and become frustrated by even the smallest obstacles. This item can be found in the Dungeon Master’s Guide.

Armor (chain mail), legendary (requires attunement)
While wearing this armor, you gain a +3 bonus to AC, you are immune to fire damage, and you can understand and speak Primordial. In addition, you can stand on and walk across molten rock as if it were solid ground.
The efreeti Prince Rashidi al-Zahar ibn Rath transmogrified an efreeti sultana into this delicate suit of crimson chain mail. The wearer of this armor always feels a slight draft, and sometimes finds it hard to stay focused on a task. This item can be found in the Dungeon Master’s Guide.

Wondrous item, legendary
While not a truly intelligent item, the Eye of Xxiphu bestows terrifying insight into the true nature of the nightmarish aboleths. The attuned possessor of the Eye gains telepathy out to a range of 120 feet, and may cover themselves in coat of mucous that allows them to breathe underwater as well as on land. The petrified orb is large and heavy, but does not need to be held in order to use its powers. Additionally, aboleths have disadvantage when attacking the owner of the Eye, and the owner has advantage on ability checks in regards to knowledge-based ability checks about aboleths and the Far Realm when they are not in combat.

This charm allows you to cast the conjure animals spell (3rd-level version) as an action. Once used three times, the charm vanishes from you.
Can conjure only octopuses and giant octopuses.

You stop aging. You are immune to any effect that would age you, and you can't die from old age.

Epic boon, unique
You have wrested away part of Szass Tam’s essence. Specifically, this spark of energy was originally wrested from the vile lich himself, and grants one additional 9th level spell slot, provided that you already have one. This item can be found in the Dungeon Master’s Guide under the entry for Boon of High Magic.