Was of Seth

Staff, rare (requires attunement by a creature of chaotic alignment)

This staff has 5 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, with a spell save DC of 15: command (1 charge), suggestion (2 charges), stormsphere (4 charges), conjure elemental (air elemental only) (5 charges).

The staff regains 1d4 + 1 expended charges daily at dawn. If you expend the last charge, roll a d20. On a 1, the staff turns into sand and blows away in the wind.

Khopesh

Weapon (Sickle), uncommon

This +1 blade can be magically dulled. As an action when holding ths blade you may change the damage type from slashing to bludgeoning.

Tyet

Wonderous item, very rare (requires attunement)

This amulet is a symobl of a long forgotten desert god. While attuned to this amulet if you fail a saving throw to a spell that allows a save at the end of your next turn, you automatically succeed the saving throw at the end of your next turn and the spell ends.

Ankh

Wonderous item, very rare (requires attunement)

This amulet functions as a holy symbol for clerics of the life domain. Additionaly, the amulet has 10 charges, which can be used to cast: aid (2 charges), death ward (4 charges), greater restoration (5 charges).

The Ankh regains 1d6 + 4 charges at noon. If you expend the last charge, roll a d20. On a 1, it releases a flash of light and turns into a non-magical holy symbol.

Benben

Wonderous item, rare

This pyramid has 7 charges. As an action you can use 1 charge to cast Mordenkainen's Magnificent Mansion. It regains 1d6 + 1 charges 1 year and a day after the first charge gets used.

Sistrum of Ubaste

Wonderous item, legendary (requires attunement, instrument of the bards)

Tasha's Hideous Laughter, Hypnotic Pattern, Compulsion, Confusion, Otto's Irresistible Dance

Book of Djehuti

Wounderous item, legendary (requires attunement by a bard, sorcerer, wizard)

This book of plated gold was rumoured to have been pened by the first arcane spellcaster. It is indecipherable until you attune to it in which case it becomes common.

You may spend hit die(ce) to fuel the following abilities without requiring material components:

1 to cast speak with animals

2 to cast see invisability

6 to cast true seeing

Credit: Charles Suddeth, Pacific Giftware