Attunement
Magic Items
Most magic items, including charms and sentient weapons, require attunement to use. An adventurer must form a mental bond with the item in order to bring out its latent powers. The number of items they can bond is dependent on their Charisma.
Charisma-based
The maximum number of items an adventurer can attune to is equal to: (Charisma Modifier + 1), minimum 1.
Identification
The attunement process can be done over a short rest, provided that the item in question is identified. This can be achieved through the Identify spell or by paying 25 gp to a merchant during downtime.