Fuel for the Fire (quest)
Drakuru in Voltarus wants you to use the Scepter of Command on Bloated Abominations and then use their abilities at the Frigid Breach to kill 60 Drakkari Skullcrushers and lure out 3 Drakkari Chieftains.
Chieftains will appear when enough Skullcrushers have been slain.
It be time we start our march to Gundrak, mon. It be time for me ta turn ya loose on dem trolls!
Dey breached our wall and put a whole army just north of us.
Dey be fuel for da fire, mon! We gunna take da chieftiains an' kill da rest! It all be part of my master plan....
Did ya smash da trolls, <name>?
We done it, mon!
I got da chieftains all caged up and you led my abominations to victory over their armies.
It be time ta celebrate, mon!
The break in the wall is just past the "waggons" and head up the snow hill (grab a Abomination on the way) to find the Trolls.
Have the Abomination tag a bunch of Trolls, then once they are all on him, knock them down to stun them all. Once they are aggro focused on your Abomination, have him explode killing all the Trolls.
Rinse and repeat. (make sure you are close enough to the Abomination to get credit for the kills.)