Fortify Defense – Artificer Infusion

Fortify Defense

Prerequisite: 6th-level artificer

Item: A suit of armor (requires attunement)

A creature gains a +1 bonus to Armor Class while wearing this armor.

The armor has 4 charges. As a reaction when the wearer suffers a critical hit, they can expend 1 charge and count that hit as a normal hit instead. Any effects triggered by the critical hit are negated. The armor regains 1d4 expended charges daily at dawn.

Source: ExEb 216