Holy Symbol of Selinwa:
Can you Turn Undead in a non-combat room, for the healing effect?
Can you Turn Undead when there's no appropriate creature to turn, for the healing effect?
General comment:
This set of URs feels heavily skewed towards Spellcasters. I don't think anyone would argue that +2 Rod of Focus, Earcuff of the Cabal, and Eye Patch of the Aesir aren't for them. Holy Symbol of Selinwa, kinda; it's a Cleric exclusive, rather than general Spellcaster, but it's still of no use to anyone else. Bead of Celecia, I'd also argue so. While Barbarians, Paladins, and Rangers can use it, they gain little out of it: Barbarian already has all the Rages they need from Bog's and a Cleric; Paladin would rather take a stat or save bead than get a single-use heal for 15; and Ranger would also rather take a stat or save bead than heal another 5 (+healing bonus).
Is it intentional that 25% of the URs grant no utility to martial classes?
Cleric main / Druid secondary