WoWDB

This achievement is not as easy as it appears. In order to get a good start on stacking the buff, you'll need to kill three - if not four - of the electrocutioners at the same time. (Alayea and I found this out the hard way, as the buff kept dropping off before we could kill the next mob.)

VERY IMPORTANT: You must be in melee range in order to receive the Power Surge buff. Casters, this means you!

In the area that Metal Lord Mono-Han patrols are several electrocutioners busy electrifying... piles of stone. Don't be afraid to grab one of them to refresh the Power Surge buff during your fight with Mono-Han when he is spinning in place or otherwise not doing a special ability (which simply comes down to not standing in Bad Stuff).

It is so easy to keep the ten-stack that Alayea and I stuck to that area and farmed for Black Prince reputation.* Power Surge = Pew Pew!

*Your Mileage May Vary. At this point in time we had no competition at all for mobs because... there's a way in without having unlocked the area. No, I won't say how. (Edit: Since this content is no longer relevant, I will share the method. There is a large angled stone on the west side of coast near the palace that almost reaches the water. A little effort with jumping, and you can run up that stone right into an area with the caves entrance. Methinks Blizzard will be a bit more careful in the future with placement of environment objects.) Oh, and don't think you can get the Thunder-forge recipes early - Blizzard hotfixed Itoka so that he'll spawn only once the area is truly unlocked, I believe.