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Defense Mastery

From UO:PvE Wiki

Defense Mastery: 30 base mana. No current weapon assignment.

Development source reviewed on 29 October 2026. In-game availability is unverified.

Ability information#

PropertyValue
Base mana30
AvailabilityNo current weapon assignment

Requirements#

  • Requires the equipped weapon’s assigned primary/secondary slot, normally 70/90 base weapon skill and (unless overridden below) 70/90 base Tactics. Use Best Weapon Skill can satisfy the weapon threshold with base Swords, Macing or Fencing.
  • The inherited required secondary skill is Tactics base 50, in addition to the normal Tactics gate.

Effects#

  • Source implementation: for three seconds, adds physical resistance equal to 50 + modifier and reduces the weapon damage-bonus input by 80 - modifier.
  • modifier = truncate(30 × (max(Bushido,Ninjitsu) - 50)/70). Reapplying replaces the previous resistance modifier and timer.

Notes#

  • No current weapon declares this ability. Physical resistance remains subject to the normal resistance cap. The damage penalty is applied to the damage-bonus input, not a direct final-damage multiplier.
  • Base mana is reduced by the shared ability skill-total discount and Lower Mana Cost rules; a second paid ability within the three-second cooldown costs double.

Source notes

Show 4 references

These references identify the reviewed shard files. Source presence does not establish live availability.

  1. Projects/UOContent/Items/Weapons/Abilities/DefenseMastery.cs:30
    Exact modifier and three-second timer
  2. Projects/UOContent/Items/Weapons/BaseWeapon.cs:2469
    Damage bonus reduction
  3. Projects/UOContent/Items/Weapons/Abilities/WeaponAbility.cs:122
    Shared skill thresholds and mana rules
  4. Projects/UOContent/Items/Weapons/Abilities/WeaponAbility.cs:410
    Players must have the ability on their current weapon

Category: Weapon abilities