Magic Items

This book contains health and diet tips, 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 Constitution score increases by 2, as does your maximum for that score. The manual then loses its magic, but regains it in a century.

Necklace of Adaptation
Wondrous item, uncommon (requires attunement)

While wearing this necklace, you can breathe normally in any environment, and you have advantage on saving throws made against harmful gases and vapors (such as cloudkill and stinking cloud effects, inhaled poisons, and the breath weapons of some dragons).

Necklace of Prayer Beads:

2x Wind Walk

1x Branding Smite

1x Cure Wounds 2nd Lvl

Source: Xanathar's Guide to Everything

Wondrous item, common

While smoking this pipe, you can use an action to exhale a puff of smoke that takes the form of a single creature, such as a dragon, a flumph, or a froghemoth. The form must be small enough to fit in a 1-foot cube and loses its shape after a few seconds, becoming an ordinary puff of smoke.

This pipe is made of dark wood and inlaid with mithral with a stem fashioned from a hollow leg bone once belonging to a bird. When used, it creates the sound of a random bird.

Ring, rare (requires attunement)
You gain a +1 bonus to AC and saving throws while wearing this ring.

Ring, rare (requires attunement)
This ring stores spells cast into it, holding them until the attuned wearer uses them. The ring can store up to 5 levels worth of spells at a time. When found, it contains 1d6 - 1 levels of stored spells chosen by the DM.
Any creature can cast a spell of 1st through 5th level into the ring by touching the ring as the spell is cast. The spell has no effect, other than to be stored in the ring. If the ring can't hold the spell, the spell is expended without effect. The level of the slot used to cast the spell determines how much space it uses.
While wearing this ring, you can cast any spell stored in it. The spell uses the slot level, spell save DC, spell attack bonus, and spellcasting ability of the original caster, but is otherwise treated as if you cast the spell. The spell cast from the ring is no longer stored in it, freeing up space.

Rod of the Pactkeeper +1.
Uncommon, Table F

This rod was taken from the fallen minion of Sir Avallar. (Requires attunement by a warlock.)
While holding this rod, you gain a bonus to spell attack-rolls (+1) and to the saving throw DCs (+1) of your warlock spells.
In addition, you can regain one warlock spell slot as an action while holding the rod. You can't use this property again until you finish a long rest.

Wondrous item, uncommon (requires attunement)
While this polished agate is on your person, you gain a +1 bonus to ability checks and saving throws.

Sword of Sharpness

Weapon (any sword that deals slashing damage), very rare (requires attunement)

When you attack an object with this magic sword and hit, maximize your weapon damage dice against the target.

When you attack a creature with this weapon and roll a 20 on the attack roll, that target takes an extra 14 slashing damage. Then roll another d20. If you roll a 20, you lop off one of the target’s limbs, with the effect of such loss determined by the DM. If the creature has no limb to sever, you lop off a portion of its body instead.

In addition, you can speak the sword’s command word to cause the blade to shed bright light in a 10-foot radius and dim light for an additional 10 feet. Speaking the command word again or sheathing the sword puts out the light.

Source: Xanathar's Guide to Everything

Wondrous item, common

This tankard has a stern face sculpted into one side. You can drink ale, wine, or any other nonmagical alcoholic beverage poured into it without becoming inebriated. The tankard has no effect on magical liquids or harmful substances such as poison.

The stern face sculpted into the side of this tankard is that of a human man in his late 30s with a finely groomed mustache and beard, and a monocle.

Wand of the War Mage +3
Wand, very rare (requires attunement by a spellcaster)

While holding this wand, you gain a +3 bonus to spell attack rolls. In addition, you ignore half cover when making a spell attack.

May be claimed in T4