Fachan

It has only one eye, one arm and one leg, and one arm is eerie, protruding from the front of the chest, a hostile mob of the same size as a creeper, and its eyes are always glowing.
This mob has a low probability of randomly appearing in the dark forest at midnight and wanders in search of the player to aggressively attack the player.
If there is a player within the range of 5 blocks around this mob itself, it will attack quickly.
When killed, it removes leather, bones, and rotten meat, but in rare cases it may remove "fachan's eyes."
However, since it will despawn when exposed to direct sunlight, you will always evacuate to a dark place such as a cave when the dawn approaches.
This item can be used as a material for new potions or for trading with villagers.
If you have any other good ideas, please let us know in the comments.
Thank you for taking a look at my idea.