Warrior · Arms · tier 5 · from level 30
Weaponmaster
+27.0 Execute
5/5 · level 60 · per cast · with an axe or polearm · and 16 more
Weaponmaster
Rank 5/5
Gives your melee weapon attacks a benefit depending on the weapon. Axe/Polearm: Increases your critical strike chance by 5%. Mace/Staff: Your attacks ignore 15% of your target's armor. Sword: Your successful melee attacks have a 5% chance to trigger an extra attack on the target.
Averages, counting crits and misses, for a level 60 Warrior with a typical weapon and no other gear or buffs, against a target your level. Worked out from the game's own data, the same way as the Foresight addon.