If you don’t know what an entity is, it is a scary creature.  It can really scare you and could destroy your PC.

  1. Entity 303

To summon entity 303 you will need 4 pieces of Nethur Rak, 1 Pumpkin and you must spawn him at night.

First place the Nethur Rak like you do with an Iron Golem and place the Pumpkin on top.

Warning! He spawns anywhere!!!