Golden Funeral Masks of the Phalanx

Wondrous item, uncommon (requires attunement) Price: 300-1,000 gp | low sentimentality

The expressions on these masks portray grim determination. While this item looks like a single mask, you can separate it into up to five masks as though the masks were stacked atop each other. Any mask taken more than 120 feet away from you evaporates into black smoke and ceases counting toward the five mask limit. The masks you give away remain attuned to you, not the creatures who wear them. All creatures wearing masks from this set are considered joined. Joined creatures share their hit points with each other as though they were one creature with a hit point and maximum hit point total equal to the sum of the joined creatures. When a joined creature removes its mask, it takes its maximum hit points from the joined group’s maximum hit points and takes hit points from the joined group’s remaining hit points equal to the proportion of its contribution to the group’s maximum hit points rounded down. For example, if three creatures with 10, 20, and 30 maximum hit points joined together at full health, they share 60 hit points. They then suffer 10 points of damage, leaving them with 50 hit points. The creature that contributed 20 maximum hit points removes its mask, taking 16 hit points with it and leaving the group with 34 hit points out of a maximum of 40 hit points.

Paid

You determine how many hit points a joined creature keeps when it removes its mask. You can’t withhold hit points from the creature if the group would be left with more hit points than the group’s remaining hit point maximum.

Overpaid

The masks double a joined creature’s hit point and maximum hit point contributions to the group.

Source: The Gray Merchant of Asphodel