Decoy     

Decoys are entities that you can craft. Player Decoy is enabled by default but if you want to have fun with monsters decoys, you will need to enable this feature using config file.

These entities can save your life. When you put it on the floor, these balloons will attract all enemies to them, freeing you to escape.

There is another another flag that you can turn on to make these entities to fight back on mob attack. In fact, only player Decoy and Skeleton Decoy can fight back throwing arrows but only if they were hit by a projectile.

Each Decoy has a final ending.:

Skeleton Decoy: it will throw a lot of arrows before die.
Creeper Decoy: it will explode but without destroy blocks, just damaging entities nearby
Zombie Decoy: it will fire fireworks.......just for fun :)
Player Decoy: it will do all 3 things together!