Healer Achievement in The Mooseman
Outsmart Yoma the Witch
How to unlock Healer
Story-related; cannot be missed.
Shortly after progressing through the world of men, you'll come to 7 tall white statues holding spears. As you progress right, you'll enter a small house with a big vulture-looking witch creature. Press to light your staff and she'll follow you. Lead her left to the statues and once she gets close enough the end one will stab her and kill her, unlocking the achievement.
Refer to the "Sunset" achievement solution for a video walkthrough of the whole game.