WoWDB

Brewmaster:

Whenever you parry an attack, you reflexively strike back at the enemy for [ 80.9% of Mainhand Min DPS + 40.4% of Offhand Min DPS + 20.5% of AP - 2 ] to [ 80.9% of Mainhand Max DPS + 40.4% of Offhand Max DPS + 20.5% of AP + 2 ] damage. This strike has a 1 sec cooldown.

Windwalker:

Whenever you parry an attack, you reflexively strike back at the enemy for [ 202.2% of Mainhand Min DPS + 101.1% of Offhand Min DPS + 16.1% of AP - 2 ] to [ 202.2% of Mainhand Max DPS + 101.1% of Offhand Max DPS + 16.1% of AP + 2 ] damage. This strike has a 1 sec cooldown.

Mistweaver:

Whenever you parry an attack, you reflexively strike back at the enemy for [ 303.4% of Mainhand Min DPS + 16.1% of AP - 2 ] to [ 303.4% of Mainhand Max DPS + 16.1% of AP + 2 ] damage. This strike has a 1 sec cooldown.