Sentient Magic Items
Some magic items have sentience and personality. Such an item might be possessed, haunted by the spirit of a previous owner, or self-aware thanks to the magic used to create it. A sentient item might be a cherished ally to its wielder or a continual thorn in the side.
Most sentient items are weapons, but other kinds of items can manifest sentience. Single-use items such as potions and scrolls are never sentient.
The GM controls sentient magic items and their activated properties. A bearer who maintains a good relationship with the item can access those properties. If the relationship is strained, a conflict can ensue (see "Conflict" below).