Zarg

Zarg are hostile melee mobs which are currently unused.

Spawning
Zarg do not spawn naturally.

Behavior
Zarg are melee mobs that will follow targets both on land and in water. They will initially attempt to avoid getting into the water where possible, but will go in if they find no other path to their target.

They are aggressive, and will attack nearby players within 16 blocks without provocation. If attacked by another entity, they will retaliate and continue targeting that entity.

Staying outside of their targeting range will prevent them from attacking or targeting entities.

Unique Abilities
If a Zarg is currently targeting a creature, it has a 1/350 chance per tick to spawn a Fake Zorp in its current location.

Hunter Mob
Zarg are Hunter creatures that can only be damaged if the player is at level 76 or higher. When killed, they will grant 966.9 Hunter xp.

Experience
Zarg drop experience when killed.

Fake Zorp
Fake Zorp are invulnerable clones spawned by Zargs. They are identical in appearance to normal Zorps.

Behavior
Fake Zorp are somewhat-hostile melee mobs that will charge at their parent Zarg's current target. Although they are melee mobs, they deal no damage, and simply charge into the player as a distraction and an obstacle.

They follow the same pathfinding as other melee mobs, avoiding water and holes were possible while making their way towards their target. Moving outside of their 16-block targeting range will prevent them from charging.

Trivia

 * Zarg appear to have been originally inspired by a creature called 'Garg' in a DOS game called Keen 1