Tag Archives: Weapon Mastery

From Twitter: Expertise Cap

Questions from Twitter is intended to be a regular Monday Update. If you’d like a question answered post it @weryl on Twitter!

twitter_icons_128You (probably don’t) remember our first installment of Questions from Twitter. That’s likely because 3 people read it. This time, we’re shootin’ for four!

Back then, @veneretio asked:
“What are the hit and expertise caps for an Arms Warrior?”

My discussion on hit is way back down the page, so let’s follow through on that promise and talk about expertise. Expertise works a lot like hit rating, except it reduces the chance to be dodged or parried, rather than the chance to miss.

Expertise’s Effect at 80
One point of expertise decreases the chance that melee attacks made by the player will be dodged or parried by 0.25%.  At level 80, a player requires 8.2 expertise rating to achieve one point of expertise.  8.2 = .25%, therefore 32.8 expertise rating = 1% less chance to be dodged or parried.

Boss’ Chance to Dodge or Parry
Rule #1 of Melee DPS: Don’t pull Aggro. 
Rule #2 of Melee DPS: Don’t stand in front of the boss.

A Mob (and Bosses) have 0% chance to Parry an attack from behind or to their direct flank. They have a 12-15% chance to parry an attack in front. Don’t stand in front. The math is easier, you won’t get cleaved or AoEd and your dps is better. Zero expertise required if you stand behind the mob. How easy is that?

Bosses have a 6.5% chance to Dodge an attack from behind or to their direct flank. (Players have zero from behind. So unfair.)

Expertise Cap from Behind a Boss
Using our earlier math, 32.8 x 6.5 = 213.2 expertise rating required to reduce the boss’ chance of dodging you from behind. The expertise cap to reduce it from in front of the boss is so astronomically high that my calculator wept. True story.

Other Sources of Expertise

Racial Traits – If you’re an Orc, Human, or Dwarf, you probably already know that your racial talents give you expertise with certain weapon types. Orcs get 5 with axes, humans 3 with swords and maces, and dwarves get 5 with maces. That’s 3 or 5 Expertise, not Exp. rating.  If you’re using that weapon type, subtract your racial bonus from 6.5, then multiply the result by 32.8 to work out the expertise rating required now. (Hint: it’s a LOT less.) 


  • Arms Warriors should grab Strength of Arms, which gives you 4 Expertise. You now need only 5.5% reduction or 180.4 exp. rating (assuming you’re using an Axe and aren’t an Orc.)
  • Fury Warriors should take Weapon Mastery, which drops your chance to be dodged by 2%. Take the 4.5% left, subtract any racial talents and work to that number.

If you have more questions, be sure to find me on Twitter or send me an email!



Filed under Warrior