This is the visualisation of an idea that I had on one of those boring Karazhan badgefarmruns.

There are 2 mobs before you face Netherspite. One of them is one of those mobs who buffs himself with a +spelldamage buff that stacks 10 times. Introduce your raidgroup, don't DPS the mob until you are filled up with stacks, then start the fight and find your place in the blue ray. The results are pretty funny ;).

music: Infected Mushroom - Deeply Disturbed (Infected Remix).