This item uses the same system that Vestiges of divergence use for progressing to another stage.

Aegis of the Threefold The threefold god

Wonderous item, artifact (requires attunement)

If a creature is attuned to the Eyes of the Maimed, The Even Hand, Duty's Bond, and Ever Watchful at the same time, the 4 artifacts are destroyed in a blinding flash of light. All that is left is a shimmering spectral gauntlet over the creature's missing right hand and a faint shimmer in the eye sockets of the creature. The gauntlet appears to be purely white with gold trim creating an eye on the back side. It is incorporeal and unable to be removed by anything less than the will of a god. It automatically attunes to the wearer.

Properties of the Aegis. Your alignment changes to Lawful Good.

Your Wisdom, Strength, and Constitution scores all become 22, unless they are already higher.

You gain truesight out to 30 feet.

Just Sight. As an action you can gleam more information about your surroundings in a 20 foot radius. For 1 minute, you know the alignment of all creatures in range, and know if they are an aberration, celestial, elemental, fey, fiend, or undead.

Vindicator. As a free action, you can draw your right hand across you waist, as if you were drawing a sword. An incorporeal sword springs into existence from the gauntlet. You gain a +3 bonus to attack and damage rolls made with this magic weapon, and it does 2d12 force damage on a successful hit.

You can sheathe the sword as a free action to cause it to disappear.

Holy Warden. When an ally within 10 feet of you is targeted by an attack, you can use your reaction to surround them with a shield of holy energy. The ally gains a +7 bonus to their AC until the end of their next turn.

Martyr. Once per day, if an ally would take damage that would reduce them to 0 hit points, you can choose to take the damage instead. If the damage reduces you to 0 hit points, you automatically succeed one death save.

Spellcasting. The Aegis has 12 charges. You can use an action and expend 1 or more charges to cast one of the following spells (save DC 18) from it, without requiring material components: imprisonment (8 charges), holy aura (5 charges), true seeing (3 charges), holy weapon (2 charge), banishment (1 charge), or dispel magic (1 charge). The Aegis regains 2d4 expended charges daily at dawn.

If a creature dies permanently while attuned to the Aegis of the Threefold, it is destroyed, and the 4 original items that created it are scattered across the planes.