Fueling the Demolishers (ID 13191)

To reiterate, the drop rate on Eternal Ember via Raging Flame is very poor. I was getting 1 in 5 kills. On the other hand, the Flame Revenants with around 25k drop 2 embers everytime. It seems 4 revenants spawn at a time, kill those you get 8, grind 2 more on raging flames and you can sack your 3 shards.

The droprate for this Embers must have been buffed at some point. I, like everybody else, gave up on this quest after getting 1 ember in 2 hours at the beginning of the expansion. I recently went back and got 10 drops in a row, without my faction controlling Wintergrasp.

Easy honor, be sure to do these quests now :)

These drop for Raging Flame fire elementals in the extreme south east corner (directly above the Obsidian Dragon Shrine in Dragonblight) -- around LOC [87.00, 65.00]. The drop rate is horrible -- with no one else around, took me almost 45 minutes to get all 10 keeping every spawn dead. The plus side is they drop Crystalkized Fire as well.

It should be noted that should you ever find players here, they'll drop them too.