Nue

It is a beast-shaped monster that appears at night when the weather is thunderstorms and the sky, and it is possible to walk in the air.
It makes a strange voice and attacks when it finds a player.
Since it attacks from the sky, you need to attack with a ranged weapon such as a bow and arrow, or with a short-range weapon such as a sword at the right time.
Also, it is hostile to the phantom, and when the phantom appears, it will aggressively attack the phantom.
If you have any other good ideas, let us know in the comments.
Thank you for taking a look at my thoughts.