5e SRD:Holy Symbol, Amulet
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Holy Symbol. A holy symbol is a representation of a god or pantheon. It might be an amulet depicting a symbol representing a deity, the same symbol carefully engraved or inlaid as an emblem on a shield, or a tiny box holding a fragment of a sacred relic. Appendix PH-B "Fantasy-Historical Pantheons" lists the symbols commonly associated with many gods in the multiverse. A cleric or paladin can use a holy symbol as a spellcasting focus. To use the symbol in this way, the caster must hold it in hand, wear it visibly, or bear it on a shield.
Cost: 5 gp
Weight: 1 lb.