The Warmonger 1-2 combo, the neatest trick I've discovered so far.
If you put an armored Warmonger in a place where they have to come face to face with it, and then put two more armored Warmongers nearby with Bloodlust... the time it takes an average player to kill the "Bait" Warmonger, is about the same time it takes for the next two to show up.
The backups arrive together and become a "1-2 combo". When the player staggers the first one by breaking its armor, the second one leaps through it and kills the player.
Since the backups are already aggroed, they don't stand there and roar at the player. They just rush straight towards them.
They fall for it almost every time. And the players who fall for it, keep dying to it over and over again.