Magic Items

Ring, Rare
You have Resistance to Force damage while wearing this ring. The gemstone in the ring is a sapphire.

(Requires attunement by a sorcerer, warlock, or wizard)
This staff can be wielded as a magic quarterstaff that grants a +2 bonus to attack and damage rolls made with it. While holding it, you gain a +2 bonus to Armor Class, saving throws, and spell attack rolls.
The staff has 20 charges for the following properties. The staff regains 2d8 + 4 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff retains its +2 bonus to attack and damage roll but loses all other properties. On a 20, the staff regain 1d8 + 2 charges.
Power Strike. When you hit with a melee attack using the staff, you can expend 1 charge to deal an extra 1d6 force damage to the target.
Spells. While holding this staff, 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 spell attack bonus: Cone of Cold (5 charges), Fireball (5th-level version, 5 charges), Globe of Invulnerability (6 charges), Hold Monster (5 charges), Levitate (2 charges). Lightning Bolt (5th-level version, 5 charges), Magic Missile (1 charge), Ray of Enfeeblement (1 charge), or Wall of Force (5 charges).
Retributive Strike. You can use an action to break the staff over your knee or against a solid surface, performing a retributive strike. The staff is destroyed and releases its remaining magic in an explosion that expands to fill a 30-foot-radius sphere centered on it.
You have a 50 percent chance to instantly travel to a random plane of existence, avoiding the explosion. If you fail to avoid the effect, you take force damage equal to 16 x the number of charge in the staff. Every other creature in the area must make a DC 17 Dexterity saving throw. On a failed save. a creature takes an amount of damage based on how far away it is from the point of origin, as shown in the following table. On a successful save, a creature takes half as much damage.

Manual of Golems (1x Flesh & 1x Iron)
Wondrous Item, very rare
This tome contains information and incantations necessary to make a particular type of golem. To decipher and use the manual, you must be a spellcaster with at least two 5th-level spell slots. A creature that can't use a manual of golems and attempts to read it takes 6d6 psychic damage.
Golem Time Cost
Manual of Clay Golems 30 days 65,000 GP
Manual of Flesh Golems 60 days 50,000 GP
Manual of Iron Golems 120 days 100,000 GP
Manual of Stone Golems 90 days 80,000 GP
To create a golem, you must spend the time shown on the table, working without interruption with the manual at hand and resting no more than 8 hours per day. You must also pay the specified cost to purchase supplies.
Once you finish creating the golem, the book is consumed in eldritch flames. The golem becomes animate when the ashes of the manual are sprinkled on it. It is under your control, and it understands and obeys your spoken commands.
Notes: Creation, Consumable

This book contains memory and logic exercises, and its words are charged with magic. If you spend 48 hours over a period of 6 days or fewer studying the book’s contents and practicing its guidelines, your Intelligence score increases by 2, as does your maximum for that score. The manual then loses its magic, but regains it in a century.

Source: Tasha's Cauldron of Everything
Wondrous item, uncommon (+1), rare (+2), very rare (+3) (requires attunement by a wizard)
While you are holding this leather-bound book, you can use it as a spellcasting focus for your wizard spells, and you gain a bonus to spell attack rolls and to the saving throw DCs of your wizard spells. The bonus is determined by the book's rarity.
You can use this book as a spellbook. In addition, when you use your Arcane Recovery feature, you can increase the number of spell slot levels you regain by 1.

Wondrous Item, Very Rare
You can make this carpet hover and fly by taking a Magic action and using the carpet’s command word. It moves according to your directions if you are within 30 feet of it.
Four sizes of Carpet of Flying exist. The DM chooses the size of a given carpet or determines it randomly by rolling on the following table. A carpet can carry up to twice the weight shown on the table, but its Fly Speed is halved if it carries more than its normal capacity.

Armor (shield), Very rare
This shield appears as a shroud of shadow with the symbol of the Raven Queen glowing in dim red light.
While holding this shield, nonmagical flames are extinguished within 30 feet of you as the shadow lashes out at the flame. The shield encourages you to hold no pity for those who suffer and die, for death is the natural end of life.
While holding this shield, you have a bonus to AC determined by the shield’s rarity. This bonus is in addition to the shield’s normal bonus to AC.

Wondrous Item, legendary (requires attunement by a sorcerer, warlock, or wizard)
This elegant garment is made from exquisite cloth and adorned with runes.
You gain these benefits while wearing the robe.
Armor. If you aren’t wearing armor, your base Armor Class is 15 plus your Dexterity modifier.
Magic Resistance. You have Advantage on saving throws against spells and other magical effects.
War Mage. Your spell save DC and spell attack bonus each increase by 2.
Notes: Bonus: Spell Attacks, Bonus: Spell Save DC, Advantage: Saving Throws, Set: Unarmored Armor Class, sorcerer, warlock, or wizard, Buff, Warding, Outerwear