The following three magic items are intended for use in 5th Edition Dungeons & Dragons. They are presented here as a preview of my upcoming supplement, Armoury of Enchantment, which will be added to my other titles currently available on the DMs Guild.
Footwear of the Windrunner
Wondrous item, very rare
These boots or sandals allow the wearer to run—not walk, not stand, but run—on thin air. They seem ordinary when worn, until the wearer takes the Dash action. Doing so gives the wearer the ability to run on thin air. Ascending by 1 foot requires an additional foot of movement, descending is treated as normal movement. The wearer falls if knocked prone, or at the start of their turn if they do not immediately take the Dash action again. If the wearer jumps while wearing these shoes, a DC 15 Dexterity (Acrobatics) check is required to avoid falling at the end of the jump.
Potion of Cosmic Revelation
Also known as the elixir of the third eye or the potion of mind opening, this potion bestows upon any creature who drinks it the effects of the contact other plane spell, some 2d4 minutes after it is imbibed. The potion renders the drinker catatonic (unconscious, for all purposes except the spell) for the duration of the spell (1 minute). A creature who is not seated when the effect hits falls prone.
If the drinker does not have any 5th level spell slots, the saving throw called for by the spell is made with disadvantage, but even on a failed save the drinker can ask 1d4 questions before taking the damage and succumbing to the mind-shattering effects of the spell.
Sapphire Bird Ring
Ring, very rare
The first sapphire bird ring was created by a high elf wizard of an age long past. This wizard, whose name and identity have not been lost, was known for possessing an unusual reverence for the beautiful things of nature, even for an elf.
This ring bears a device that resembles a bird with two exquisitely cut sapphires for eyes. With a mental command and an action, one or both sapphires can be ejected from the ring, at which point they turn into a crystalline construct resembling a bluebird. Use the statistics for a raven, minus the mimicry ability, but the creature is a construct, not a beast, and has only 1 hp. The birds glow with an inner light, shedding bright light in a 10 foot radius and dim light for another 10 feet. If one of the birds takes any damage, it shatters into brittle blue glass immediately. If a bird is destroyed, its gem will reappear on the ring after 1d6+1 days. Until that time, it cannot be re-summoned.
While they exist, the bluebirds are bound to the ringbearer can communicate with, control, and see through the senses of either bird as if it were a familiar, (as described under the find familiar spell), though the birds cannot deliver spells or use the Help action. The wearer may also cast the animal messenger spell at-will, using one of the birds. The birds always return unerringly to the ring after delivering their message.
A bird created by the ring cannot be banished as a familiar would be. If touched with the ring, as an action a bluebird can be turned back into a gemstone, which rejoins with the ring.