Blessed Chalice of Health

Water poured into this chalice becomes holy.
Once per day, as an action the possessor can
bless the holy water and create a healing aura
in a 20-foot radius. Allies within the aura regain
2d6 hit points at the start of their turn. Undead
and fiendish creatures within the aura suffer 2d6
radiant damage at the start of their turn. The
effect lasts for one minute.
—
This simple but valuable golden chalice bears
a single ruby upon its cup.