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Bairns belong in the Combat Unknown tier. They are the infected forms of baby mobs. Bairns are also notably fast. They are technically considered as Infected.
Spawning
Spawned when a baby Zombie, Husk, Drowned, Villager, or Zombie Villager dies with Mycelium Infection.
Unique Behavior
When finding a container within a 20x4x20 block area that has food items in it, Bairns will run up to it and eat the food inside. When eating the food, for each item they eat, they gain 1 kill point. Once the container has run out of food, the Bairn will break the container.
Every 5 seconds, Bairns will search for any Hexenmeister Claws in a 26 block range. If finding one, they will move towards it and start riding it, resulting in a Claw Jockey.
Bairns often pounce at their targets when in close range. They can utilize this to leap across small gaps to reach targets.
The Bairn has five variants. When spawned with its spawn egg, it is a 20% chance per variant.
The Husk Bairn occurs when a baby Husk dies with Mycelium Infection. This variant inflicts the Hunger effect for 1 minute when dealing melee damage.
The Drowned Bairn occurs when a baby Drowned dies with Mycelium Infection. This variant has enhanced swimming and is able to breathe underwater.
The Villager Bairn occurs when a baby Villager dies with Mycelium Infection. This variant is able to open doors.
The Diseased Villager Bairn occurs when a baby Zombie Villager dies with Mycelium Infection. This variant inflicts the Poison and Nausea effects for 10 seconds when dealing melee damage and is able to open doors.
Behavior
Bairns are melee combatants, being hostile to most mobs.
Bairns inflict Mycelium Infection for 30 seconds when dealing melee damage.
Have a follow range of 16 blocks.
Bairns can fall victim to Starvation.
Bairns have a 5% chance to drop a Scent upon death.
Bairns will attempt to group together in hordes with other Infected.
Bairns will follow Evolved and Hyper Evolved mobs.
Can perform low leaps/dashes to chase targets quickly through liquids.
Able to use Kill Points to give themselves buffs.
Related Advancements
Drops
Lore
To make the baby mobs large and bulky enough to be competent infectors, the fungus took advantage of the child's partially underdeveloped form to begin a very rapid and imperfect violent puberty. Due to this sudden burst of growth, it makes the creature not only a little awkward on its feet, but also insatiably ravenous, as it has burned what little fat and energy it had stored in order to achieve the flawed acceleration of its host's forced puberty.
Bairn
Statistics
HP: 12 (x6 hearts)
Armor: 1 (x0.5 bars)
Damage: 4 (x2 hearts)
ID: spore:bairn
Threat Level: Low
Trivia
The Bairn is a suggested mob, coming from the mind of @slasherwolf_ in the Spore Asylum Discord server.
The Bairn's model was created by the same person who suggested it, Slasher.
The term 'bairn' in real life means "a child."
Before the Bairn was added, infectable baby mobs would just turn into regular adult Infected forms.
Bairns were meant to latch onto their target's face, but as the mod creator worked on it, he decided it looked too funny so it was scrapped.
Another scrapped ability of the Bairn is that it would've been able to squeeze itself through none-full blocks (fences, slabs, etc.). This was ultimately scrapped due to how broad of blocks Bairns would be able to go through, and selecting specific blocks wouldn't have been broad enough. The mod creator also decided it would've been boring.
Bairns, when eating food from containers, were meant to throw out random non-food items from the container. It's unknown why this was scrapped, but likely because it would've been very annoying if a player's items despawned because of a Bairn.
Despite being in the Unknown tier, the entity class of the Bairn extends them to the Infected tier.
The Villager Bairn variant had the most thought behind its design. "I wanted to go for a more sad, gross, disturbing vibe. It's the only one with blood, which I added around its body and also made it crying some. Its scarla (the white part of your eye) is a little red, like it's puffy with infection. And it has also vomited up on itself. I wanted said vibe because unlike the other babies who are undead, the villager is alive. It's a turned kid, it should be sad to look at. Like when you see roadkill, it's sad but also gross." (edited quote from Slasher, regarding the Bairn Villager variant and his thought process when modeling it).
Gallery
The Husk Bairn variant.
The Drowned Bairn variant.
The Villager Bairn variant.
The Diseased Villager Bairn variant.
A Claw Jockey with a Human Bairn variant.
Getting the Bairn to render in-game.
Getting the Bairn to ride Hexenmeister Claws.
Ditto.
A picture posted in the Discord server teasing the Bairn before it was released.