So - following on from this thread: http://www.ownedcore.com/forums/worl...-of-death.html (12 Mil XP/Hour - Dread Wastes - Angel of Death)
I was using this and noticed that when I use iceblock as a mage it resets the cooldown on the angel of death buff - potentially this could double the exp grind.
When iceblock is applied you get a 30 second debuff to stop you using it again, other classes should try this with similar abilities such as power word:shield etc!
Let us know if you find any other abilities that work!