Insta critter spawn.

[motastic]

1. Have lvl 3 garrison.
2. Enable [Creepy Crawlers] http://www.wowhead.com/item=128664/creepy-crawlers decorations, so the battle pets spawn in your garrison.(need to do couple of quests)
3. Kill ghostly critters with some sort of aoe like death and decay. Repeat.
4.????
5. profit

https://i.imgur.com/AMtLPWA.jpg

Useful for http://www.wowhead.com/achievement=5...ter-kill-squad

[Added]
There is a spot where two critters spawn near each other. Its right next to the Arachnis rare mob that spawns with decorations.

[CreativeXtent]

i will go try it out. super cool if that works.

[Hazzbazzy]

Is there a productive point to this though? :/

[motastic]

Is there a productive point to this though? :/

Yea, you can use this to work towards the achievement to kill 50000 critters.

[snappymilli]

super cool if that works.

[motastic]

Still works as of 20/12/2015

[titkiller]

As a shadow priest, I had known this bug I was killing Arachnis everyday and when I start my fight with Halo, I always got 14-15 kills of critters out of one halo where there are 3 critters in range of Halo, yet didn't thought of it will have a profit for such achievment. Good find.