Huge exploit/trick involving vengeance & mitigation mechanics/abilites.
Any %damage reduction ability will work for this, however, the only actually relevant ones are the monk abilities Diffuse Magic & Zen Medidation. Anything from Barkskin to Guardian of Ancient Kings will also trigger this exploit, but in much smaller proportion. If you didn't figure it out already, this is dependant on the amount of reduction from the ability.
Server lag allows you to use this to gain ridicolous amounts of vengeance, example;
Tank runs away from Sha of Pride & gets Reaching Attack spammed. At the very end of the Reaching Attack cast, tank presses Diffuse Magic. This will (if timed correctly) cause the server to think that you took a full hit of reaching attack with your Diffuse Magic up, which is a 90% magic damage reduction. This will give you 10 times the amount of vengeance that you should normally get.
It's fairly easy to time this after you got the hang of it - It's useable on every boss in diffrent ways, as Zen Meditation also reduces damage from Physical abilities, you can use it for melee attacks aswell as spells.
Some obvious spells this is nice for;
Immersus: Corrosive Blast
Protectors: Calamity (fairly hard to time this sometimes)
Sha of Pride: Reaching Attack And/Or Swelling Pride
Dark Shamans: Froststorm Bolt (Cast by Wavebinder Kadris)
Nazgrim: Execute
Thok: Any melee attack (assuming you're solotanking) at around 5 stacks of the debuff in P1, as this'll cap you.
Siegecrafter: Electrostatic shock will work for this, but it's also quite hard to get right.
Garrosh: Annihilate. More detailed guide on how to do this here; http://www.ownedcore.com/forums/worl...sh-heroic.html (BM Monk Vengeance Cap Exploit - Garrosh Heroic)
Besides this, if you macro Diffuse Magic & Zen Meditation into the same macro like so;
Code:
#showtooltip
/cast Diffuse Magic
/cast Zen Meditation
Timing this correctly will instead give you 100 times the vengeance rather than 10.