Kickin' With the Wick

This achievement can only be completed during the in-game event “Hallow's End”. To complete it, go to the dungeon where the Headless Horseman is located. As soon as you enter the dungeon, you'll see wooden golems on the left side of the dungeon - the prisoners (see the main image of the guide). Talk to each of them to get the mandatory buff, the presence of which is a prerequisite for completing the achievement.

Note: once the boss fight starts, these wooden statues will disappear, so it's important to get the effect before the fight starts.

The buff will make the boss fight a bit harder, but not much. The main thing is that you must not die before the Headless Horseman dies. Otherwise, the buff will disappear from your character and you will have to go through this challenge again.