Magic Items

Rod of Security
Rod, very rare
This wrought iron rod is covered in tiny padlocks and always cold to the touch. The rod will transport you and up to six willing companions to a comfortable cabin with no exit save for the rod. The windows display a dark and foreboding forest, and a tallspired castle can be seen through the gloom. After 24 hours, you and your allies return to the exact location you left though you may choose to leave earlier.

A description of this item can be found in the Dungeon Master’s Guide.

Rooster (Wand of Wonder)
Wand, rare (requires attunement by a spellcaster)
Rhaugilath’s efforts to record the history of the Netherese Empire sometimes incorporated some unsavory elements… such as the transmogrification of a chaos sorcerer into this elegant wand. Covered in swirls, whorls, dizzying patterns, knobs, and clicky bits, it thrums and hums in your hand.

This item can be found in the Dungeon Master’s Guide.

Gray Robe of the Archmagi
Wondrous item, legendary (requires attunement by a sorcerer, wizard, or warlock)
Originally crafted during the height of the Netherese Empire, this robe is a warm gray color and very plush. It is stitched with silver thread and the back is covered by Rhaugilath’s arcane sigil mixed with the sign of Mystryl.

This elegant garment is made from exquisite cloth of white, gray, or black and adorned with silvery runes. The robe’s color corresponds to the alignment for which the item was created. A white robe was made for good, gray for neutral, and black for evil. You can’t attune to a robe of the archmagi that doesn’t correspond to your alignment. You gain these benefits while wearing the robe:

If you aren’t wearing armor, your base Armor Class is 15 + your Dexterity modifier.
You have advantage on saving throws against spells and other magical effects.
Your spell save DC and spell attack bonus each increase by 2.

This item can be found in the Dungeon Master’s Guide.

Common
This elegant outfit of traveler's clothes magically mends itself to counteract daily wear and tear. Pieces of the outfit that are destroyed can't be repaired in this way.

Astromancy Archive
Wondrous item, rare (requires attunement by a wizard)
3 lb.

This brass disc of articulated, concentric rings unfolds into an armillary sphere. As a bonus action, you can unfold it into the sphere or back into a disc. When found, it contains the following spells, which are wizard spells for you while you are attuned to it: augury, divination, find the path, foresight, locate creature, and locate object. It functions as a spellbook for you, with spells encoded on the rings.

While you are holding the archive, you can use it as a spellcasting focus for your wizard spells.

The archive has 3 charges, and it regains 1d3 expended charges daily at dawn. You can use the charges in the following ways while holding it:

If you spend 1 minute studying the archive, you can expend 1 charge to replace one of your prepared wizard spells with a different spell in the archive. The new spell must be of the divination school.
When a creature you can see within 30 feet of you makes an attack roll, an ability check, or a saving throw, you can use your reaction to expend 1 charge and force the creature to roll a d4 and apply the number rolled as a bonus or penalty (your choice) to the original roll. You can do this after you see the roll but before its effects are applied.

Minor Property: Harmonious
Attuning to this item takes only 1 minute.

Wondrous Item, very rare

This bag superficially resembles a Bag of Holding but is a feeding orifice for a gigantic extra dimensional creature. Turning the bag inside out closes the orifice.

The extra dimensional creature attached to the bag can sense whatever is placed inside the bag. Animal or vegetable matter placed wholly in the bag is devoured and lost forever. When part of a living creature is placed in the bag, as happens when someone reaches inside it, there is a 50 percent chance that the creature is pulled inside the bag. A creature inside the bag can use its action to try to escape with a successful DC 15 Strength check.
Another creature can use its action to reach into the bag to pull a creature out, doing so with a successful DC 20 Strength check (provided it isn't pulled inside the bag first). Any creature that starts its turn inside the bag is devoured, its body destroyed.

Inanimate objects can be stored in the bag, which can hold a cubic foot of such material. However, once each day, the bag swallows any objects inside it and spits them out into another plane of existence. The DM determines the time and plane.

If the bag is pierced or torn, it is destroyed, and anything contained within it is transported to a random location on the Astral Plane.

Ambledragon said this bag would help cover up mistakes and deal with challenging individuals. I wonder how many “mistakes” he has used it on in the past….

This item can be found in the ​Dungeon Master’s Guide.

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 × the number of charges 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.

Distance from Origin Effect
10 ft. away or closer 8 × the number of charges in the staff
11 to 20 ft. away 6 × the number of charges in the staff
21 to 30 ft. away 4 × the number of charges in the staff
Versatile. This weapon can be used with one or two hands. A damage value in parentheses appears with the property—the damage when the weapon is used with two hands to make a melee attack.

Wondrous item, major tier, rare
You can use an action to place this 1-inch metal cube on the ground and speak its command word. The cube rapidly grows into a fortress that remains until you use an action to speak the command word that dismisses it, which works only if the fortress is empty.

The fortress is a square tower, 20 feet on a side and 30 feet high, with arrow slits on all sides and a battlement atop it. Its interior is divided into two floors. with a ladder running along one wall to connect them. The ladder ends at a trapdoor leading to the roof. When activated, the tower has a small door on the side facing you. The door opens only at your command, which you can speak as a bonus action. It is immune to the knock spell and similar magic, such as that of a chime of opening.

Each creature in the area where the fortress appears must make a DC 15 Dexterity saving throw, taking 10d10 bludgeoning damage on a failed save, or half as much damage on a successful one. In either case, the creature is pushed to an unoccupied space outside but next to the fortress. Objects in the area that aren't being worn or carried take this damage and are pushed automatically.

The tower is made of adamantine, and its magic prevents it from being tipped over. The roof, the door, and the walls each have 100 hit points, immunity to damage from nonmagical weapons excluding siege weapons, and resistance to all other damage. Only a wish spell can repair the fortress (this use of the spell counts as replicating a spell of 8th level or lower). Each casting of wish causes the roof, the door, or one wall to regain 50 hit points.