Chime

Chime is a Neutral tamable mob which spawns naturally above Y-coordinate of 70.

Appearance
Chime looks like a bell made out of gold/brass with 2 pieces of fabric hanging under it. They hover in the air and takes no fall damage.

Behavior
Chime is a Neutral tamable mob which has no ability to attack others. Instead, they emit sound waves and all nearby entities take damage over time. The damage does not affect their own kind or their owner, and the damage ignores armor. They have the same behavior as wolves, but instead of attacking their attacker, they will swarm toward their attacker and causing their AOE damage over time to stack together.

Taming
To tame a Chime, the player must use Golden Nuggets on one of them. However, this is risky as to tame a Chime, one must get close enough but the AOE damage over time will slowly kills the player if there are multiple Chimes nearby.

Abilities
Chimes emit sound waves to deal damage over time within an area. The affected radius is 6 blocks, and deals 1 damage per second. Does not affect same species or owner. Apart from the AOE damage per second, the Chime has another special ability. Like Ocelots with Creepers, a Chime keeps Endermen at bay, and also stops them from teleporting.

Strategy
Taming a Chime is risky, but it's well worth it if you can tame one or a couple of them. As a tamed Chime will not damage it's owner, bringing a Chime into a monster-filled dungeon with you could help out as it will deal damage to nearby mobs. Needless to say, bringing in a couple of tamed Chimes will help you out greatly as they will destroy the mobs for you.