[RPG] the ‘arcane focus’ in the attacks/spells


I am trying to play D&D and am making my first character sheet. I finished everything but one part is confusing me.

I have everything done for my sorcerer character sheet and one of the attacks/spells is called arcane focus. I can't find out what the bonus or the damage type is.

Please help, I have been searching for hours.

Best Answer

An Arcane Focus is not an attack or spell, it is a piece of equipment.
In short, you use it to cast spells. It has no effect other than casting the spell.1

From the Spellcasting chapter, under Components (PHB p.203):

Material (M)
Casting some spells requires particular objects, specified in parentheses in the component entry. A character can use a component pouch or a spellcasting focus (found in “Equipment”) in place of the components specified for a spell. But if a cost is indicated for a component, a character must have that specific component before he or she can cast the spell.

From the Equipment chapter (PHB p.151):

An arcane focus is a special item--an orb, a crystal, a rod, a specially constructed staff, a wand-like length of wood, or some similar item--designed to channel the power of arcane spells. A sorcerer, warlock, or wizard can use such an item as a spellcasting focus.

There is also a table listing the various items and their prices (PHB p.150).

1 with one slight exception: an Arcane Focus staff can also be used as a Quarterstaff weapon.