Magic Items

Wondrous item, uncommon (requires attunement)

While wearing this cloak, you can breathe underwater, and you have a Swim Speed of 60 feet.

This oilskin cape has strands of crystal and coral hanging from the front.

Folding Boat: When unfolded to the ship size, this boat has a small casino on deck. It has a wet bar, four casino tables, and flies the flag of Waterdeep’s current Open Lord, Laeral Silverhand (who probably neither knows nor approves of this ruse)

Source: Tasha's Cauldron of Everything

Wondrous item (tattoo), rarity varies (requires attunement)

Tattoo Attunement. To attune to this item, you hold the needle to your skin where you want the tattoo to appear, pressing the needle there throughout the attunement process. When the attunement is complete, the needle turns into the ink that becomes the tattoo, which appears on the skin.

If your attunement to the tattoo ends, the tattoo vanishes, and the needle reappears in your space.

Protection. While you aren't wearing armor, the tattoo grants you an Armor Class depending on the tattoo's rarity, as shown below. You can use a shield and still gain this benefit.
Rarity AC
Uncommon 12 + your Dexterity modifier
Rare 15 + your Dexterity modifier (maximum of +2)
Very Rare 18

Wondrous Item, rare (requires attunement)

The amulet's pendant and chain are made of gold, and the pendant bears the symbol of two hands cupping the sun.

Medium armor (half plate), rare

You have a +1 bonus to AC while wearing this armor. The wearer has Disadvantage on Dexterity (Stealth) checks.

This black enameled armor has a splash of green paint across the breastplate. No amount of cleaning will remove it; even magical attempts to remove the black or green paint prove useless. Any creature familiar with the Tears of Virulence are likely to treat the armor’s wearer with suspicion.

Weapon (Greataxe), Rare

You have a +1 bonus to attack and damage rolls made with this magic weapon.

When you use this axe to make an attack against a plant (an ordinary plant or a creature with the Plant type) or a wooden object that isn't being worn or carried, the attack deals an extra 2d6 slashing damage on a hit.

Wand, rare (requires attunement by a Spellcaster)

This wand has 7 charges for the following properties. It regains 1d6 + 1 expended charges daily at dawn. If you expend the wand's last charge, roll a d20. On a 1, the wand crumbles into ashes and is destroyed.

Spells. While holding the wand, you can use an action to expend some of its charges to cast one of the following spells (save DC 17): hold monster (5 charges) or hold person (2 charges).

Assisted Escape. While holding the wand, you can use your reaction to expend 1 charge and gain advantage on a saving throw you make to avoid being paralyzed or restrained, or you can expend 1 charge and gain advantage on any check you make to escape a grapple.

Any other creature that attunes to the Ioun stone is cursed.

While cursed in this way, the creature is magically transformed into an animated, doll-like effigy of itself made of wood. The creature’s statistics are the same, except that it is a Construct with vulnerability to fire damage, and it doesn’t require air, food, or water. Items worn or carried by the creature are unaffected.

Staff, very rare (requires attunement)

This staff can be wielded as a magic Quarterstaff that grants a +3 bonus to attack rolls and damage rolls made with it.

The staff has 10 charges. When you hit with a melee attack using it, you can expend up to 3 charges. For each charge you expend, the target takes an extra 1d6 Force damage.

Regaining Charges. The staff regains 1d6 + 4 expended charges daily at dawn. If you expend the last charge, roll 1d20. On a 1, the staff becomes a nonmagical Quarterstaff.