There may be many World of Warcraft friends who want to know how to unlock the "Who Sent You in World of Warcraft" achievement. Now the editor of Sourcecode.com has collected and compiled "How to Unlock the "Who Sent You in World of Warcraft" achievement. Interested students can read on. Take a look, maybe it can help you.
Kill the monster of the Yuansworn Black Guard to complete.
There are about 9 of them, and they refresh every 5-7 minutes.
At teleport point 23 and 31, there is one about 60 yards down the road, and another about 50 yards to the right. There is a lone one under the bridge under the bridge under the Venthyr raid (not recommended).
You can find two at 47 and 60 after going from the Beacon Stone to the Beast's Pass, and there is one at the entrance from the Castle of Destruction to the Beast's Pass.
Continuing forward there is one at 56 and 62, and then there are two at 59, 67 & 59, 64 before the entrance to the abyss. Further inside, the elites are afraid to go in.
To sum up, kill 3 at the entrance of the Beast Passage, and then kill 3 at the entrance of the Hell. This is the most efficient and safe way to go back and forth.
Monster spawn cycle
It is recommended that brothers do it together with the [Grand Theft Hound Hand] achievement and the collection of wild shadow dog mount materials.
You only need to expand the surrounding circle based on the monster spawning cycle, and you can collect achievements and mount materials along the way.
The speed of spawning monsters is exactly the same as the speed of refreshing the Netherworld Hub.
—Three successes with three actions!!!
This method was derived from many experiments, so you can feel free to follow the guide. As long as you strictly follow each step, you will be able to solve this problem easily.