Collector

A strange hostile mob that wants to collect rare items.
It mainly appears in caves, finds players and attacks them.
However, if you throw a rare item in front of this mob, you will immediately pick it up before attacking, observe it carefully, and then gladly collect it and leave in front of the player.
This mob is very annoying and will struggle as hard as an enderman or creeper.
If you have any other good ideas, please let us know in the comments.
Thank you for taking a look at my idea.