Name: Mastery: Strikes of Opportunity (Opportunity Strikes.)

Class: Warrior.

What it should be doing: Should grant a % chance for your melee attacks to trigger an additional melee attack for 100% normal damage.

What it's currently doing: Mastery (Opportunity Strikes) is not proccing, causing damage loss for Warriors.

WM Proof: https://imgur.com/a/uCXHk - 100 melee strikes and not one proc on Recount.

Retail Proof: https://imgur.com/a/P5cCs - Mastery template.