Hello!

This is a very easy achievement to get.
YOU DO NOT NEED TO KILL THE BOSS TO GET THE ACHIEVEMENT.

What you need is only 2 toys in your collection:
- [Toy Train Set] Sold by Jepetto Joybuzz, Clockwork Assistant, Alliance Craggle Wobbletop, and HordeBlax Bottlerocket for 250G
- [Wind-Up Train Wrecker] Sold by Jepetto Joybuzz, Clockwork Assistant, Alliance Craggle Wobbletop, and HordeBlax Bottlerocket for 250G
(adapted from [ Ссылка ]).

At first put both of the toys in the action bar: 1st the train set and 2nd the Wrecker.
After killing all the trash head to the boss.

Several people can try doing at the same time...but only one is needed....

As you aggro the boss head to the first railway and set up the train. After that set up the Wrecker...and after that the big train should destroy your Wrecker. You can try as many times as you want....just a little bit of timing and it is done :)

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