3 different farms is shown in the video, one that is automated and allows you to afk. Although I would have liked to incorporate that into farm #3 I couldnt, since I think the afk version is quite boring. Rather slice away with the weapon!
If you dont know how to find harpies, or what they can drop I will try and explain quick. Harpies spawn quite far from your base, and high in the air. I think you need to be 1/3 of the maps length away from your spawn. The Harpies drop feathers which are used to make the gravitation potion.
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