Attack opposite faction without guard aggro, best used to gank low-levels

[TriggerGS]

You'll need this handy trinket from a quest in Kun-Lai Summit.
Explosive Barrel - Item - World of Warcraft

The Use effect of that trinket doesn't aggro guards. It's a 2-minute cooldown though, so only really interesting use I've found so far is one-shotting lowbies.

The trinket doesn't aggro mobs either, though the mob quickly gains it's health back as it's not in combat. I can't think of any use for that, but maybe someone else out there can.

I already did a forum search for "explosive barrel", "barrel", "guard", and "neutral"; I've only managed to find an similar exploit that required a warlock spell. If this is a repost, please hit me with the shame hammer.

[xlAnonym0uslx]

Pretty cool find. +rep

[khaled1994]

Awesome find!

[dariusz]

hilarious to see a player look in all directions trying to understand what kicked him.

great find

[Steffenftw]

This is gonna be fun messing around with ty.

[TriggerGS]

So...time for an update. I've found another trinket that functions the same way that the Explosive Barrel does.

Ban's Bag of Bombs - Item - World of Warcraft
It's a quest reward from the first quest hub in Townlong Steppes.

The trinket works the same way as the previous one but on a 3-minute cooldown. Though it does less damage, the damage is AoE. It's enough to one-shot most characters under level 60.(I've seen lvl60 Death Knights survive it).

Using one of the trinkets will put the other on a 1-minute cooldown, but it's better than waiting 2 minutes every time you use your explosive barrel.

After seeing this second trinket with this effect, I'm starting to wonder how many more are out there that I've simply DEed without investigating.