Orb

This spherical talisman serves as a spellcasting focus, helping the practitioner to channel arcane, primal, or divine energies.

Spellcasting Focus. An arcane focus is a special item designed to channel the power of arcane spells. A sorcerer, warlock, or wizard can use such an item as a spellcasting focus, using it in place of any material component which does not list a cost.