The Sieve of Sirach
When a sieve is shaken, the refuse remains; so a man’s filth remains in his thoughts. The kiln tests the potter’s vessels; so the test of just men is in tribulation. The fruit discloses the cultivation of a tree; so the expression of a thought discloses the cultivation of a man’s mind. Do not praise a man before you hear him speak, for this is the test of men. (Sirach 27:4-7)
Okay, got to be honest. This time the magic item doesn’t really have much at all to do with the quote, which was part of the first reading at Mass this past Sunday. Once the idea presented below got stuck in my head, it wouldn’t let go.
Sieve of Sirach
Wondrous item, rare (requires attunement)
This leaf-shaped wondrous item is a bit longer than a human’s hand and made of silver. While holding the sieve, a monster capable of incorporeal movement cannot move through creatures and objects in a 15-foot square area around you. This effect does not prevent normal movement. Also while holding the sieve, you have advantage on saving throws against the incorporeal monsters’s attacks and magical powers.
The sieve can be used as a weapon. You can use the Attack action to make a melee spell attack with the sieve against an incorporeal creature. Your attack bonus with the sieve equals your Wisdom modifier + your proficiency bonus + 1. An incorporeal creature hit by the sieve takes 3d6 radiant damage. If the target has 25 hit points or fewer after taking this damage, it must succeed on a DC 15 Wisdom saving throw or be destroyed.
If the creature is destroyed, a fine powder remains in the sieve. You can use an action once per day to sift this powder to find 1-4 smoky crystals called ghost stones. A ghost stone sheds bright light in a 20-foot radius and dim light for an additional 20 feet when within 60 feet of any undead or fiend. This glow lasts for 1 minute and then the ghost stone dissolves into mist. Also, an unactivated ghost stone retains its power for 1 hour, at which time it dissolves into mist.