Fortification

Fitness constellation · Passive star.

Max investment: 30 points

Passive: applies at all times once you invest points.

More Fitness passive stars

How Fortification Fits Into a Block-Tanking Build

Fortification only matters when you're actively holding block, so its value scales with how much of an encounter you spend blocking rather than attacking or moving. Tanks who block-mitigate heavy boss attacks, or PvP players who block through burst combos, get consistent value from every point invested here since it applies passively at all times once slotted.

Because it's a Fitness constellation passive, Fortification doesn't compete for a limited slot the way Warfare or Slaughter stars do — investing points here doesn't cost you a stronger single-target or AoE damage star. This makes it a low-opportunity-cost pickup for any tank build once core survivability stars are covered.

Stack Fortification's block mitigation with your character's base block cost and damage reduction from gear or skills to get a fuller picture of total block effectiveness. The exact combined mitigation depends on those other sources and current patch values, so checking in-game tooltips after slotting points is the reliable way to confirm your total block reduction.

Common questions

Does Fortification increase mitigation while blocking against all attacks, or only specific damage types?

Fortification increases the amount of incoming damage you can block, applying to the block mechanic itself rather than a specific damage type. It works alongside your base block mitigation and other block-related bonuses (from skills, sets, or Champion Points) to reduce how much damage gets through when you hold block, regardless of whether the attack is physical or magical.

Is Fortification worth slotting for PvE tanks, or is it more of a PvP star?

Fortification benefits any build that relies on blocking to survive incoming damage, which makes it most valuable for tanks in PvE trials and dungeons where sustained blocking against heavy attacks or boss mechanics is common. It also has clear value in PvP for players who block-cast or turtle through burst damage. Builds that rarely block, such as pure damage dealers or healers, will get little use from points invested here.

How does Fortification interact with other Fitness constellation stars like Tumbling or Sprinter?

Fortification, Tumbling, and Sprinter all sit in the Fitness constellation but each addresses a different survivability or mobility need: Fortification improves block mitigation, Tumbling reduces roll dodge cost, and Sprinter increases movement speed. Because Fitness stars are unslotted passives once points are invested, a tank or hybrid build can invest in several of them simultaneously without needing to choose one slot over another, unlike Warfare or Slaughter constellation stars which use limited slots.