PoE Ref

Defence

Fortification

Each Fortification stack makes the player take 1% less damage from hits, up to 20 stacks by default.

Rules at a glance

  1. Fortifying hits generate stacks according to damage relative to the enemy’s ailment threshold and rarity.
  2. Each stack grants 1% less damage taken from hits; damage over time is not a hit.
  3. The default maximum is 20 stacks and the default duration is six seconds.
  4. Stack instances expire independently rather than refreshing as one shared duration.