Building on what everyone else has said here, after the opener and my first Rage of Halone combo on the first kill target, I will continue to Fast Blade, Savage Blade the kill target. Now I will cycle through the mobs and see which is most in need of threat and land Halone on that. Often times, all you need is one solid dump of threat to keep them on you and that's exactly what Rage of Halone does for you loaded with the combo multiplier. You will not need to worry about threat on a non kill target after he gets a full loaded Halone. Flashing in between RoH combo strings is also nice too.