Charm

Equip the Charm in a Charm slot, keep enough charges for one use, and let its listed condition activate it. The Charm spends its stated charges, applies its effect for the listed duration, and cannot activate again until that duration ends. Kills grant Charm charges equal to half the monster's Power, while checkpoints and Wells refill equipped Charms completely.

Activation is automatic

A Charm cannot be activated manually. Its implicit modifier states the condition that uses it, such as becoming Frozen, starting to Bleed, taking Fire damage from a Hit, or killing a Rare or Unique enemy.

Charges pay for each use

The Charm must hold at least its listed charges per use when the condition occurs. Monsters grant Charm charges equal to half their Power. Checkpoints and Wells refill equipped Charms completely, passive generation can add charges when explicitly stated, and unequipping a Charm removes its stored charges.

Duration prevents immediate reuse

After activation, the Charm grants its listed effect for its Charm duration and cannot activate again until that duration expires. Increased Charm Effect Duration keeps the protection active longer but also delays the earliest possible next use.

Identical types activate in sequence

If two Charms of the same type are equipped, only one activates when their shared condition is met. Charms of different types can activate at the same time when each condition is satisfied and each Charm has enough charges.

Belts supply most slots

A belt below item level 30 grants one Charm slot. Belts from item level 30 to 59 can grant one or two through their implicit, and belts at item level 60 or higher can grant one to three. Additional Charm Slot explicit modifiers no longer roll on new belts, though an item such as Bijouborne can state an exception.

Three Charms is the current cap

The character can currently equip at most three Charms. Ancient Vows grants one additional Charm Slot together with a choice between increased Charm Charges gained and increased Charm Effect Duration, but extra sources do not raise the current equipped cap above three.

Quality increases duration

Charm Quality increases the duration of the Charm's effect by the same percentage. Glassblower's Bauble applies only to Flasks, so a Charm must already drop with Quality or gain it through a valid corruption outcome.

Charm rarity stops at Magic

A non-unique Charm can be Normal or Magic, and a Charm can also be Unique. Charms cannot be Rare, so their modifier and crafting expectations differ from ordinary Rare equipment.

Charms are not Flasks

Both systems use charges and refill at checkpoints or Wells, but Charms activate automatically from conditions while Life and Mana Flasks are normally used manually. Charm-only and Flask-only modifiers apply only to the named item class unless the wording explicitly includes both.