Brothers Jaw

The Brothers Jaw are Hardmode Phase 2 ( referred to as Insane mode) bosses themed after the Crimson. They must be defeated before Cranius can be summoned. It can be summoned by removing all Crimson from a world, (excluding underground crimson) in which case they spawns instantly afterwards, or using an Orbiting Spine in the Purity at night.

The bosses themselves are much smaller, faster versions of the Eater of Worlds. They follow attack patterns resembling that of Duke Fishron, charging at the player before pausing momentarily and then charging again.

First phase
Oculus has a much larger health pool, and stays further away from the player, firing Deadly Ray projectiles from its eye and attempting to move in front of the player to do damage to them. Bloodfang is the smaller and faster of the two, constantly charging at the player while firing Bloody Spit projectiles from all of its side mouths. The Brothers each have a second form. Oculus transforms, losing three of his segments including the tail, at 22000/44000 health. Bloodfang transforms, growing slightly in size, with black cracks spreading across its body, at 12000/25000 health.

Second phase
Oculus becomes much faster and gains a 10% damage increase, and begins to circle the player in an attempt to deal high damage to them, making him much more dangerous, as well as giving the Ichor debuff on contact. Bloodfang increases in speed and gains a 30% damage increase, as well as leaving behind a trail of red energy that deals high damage and applies Bleeding on contact. If either one is killed, the other will gain another 20% damage increase and a speed boost.

Expert mode
In Expert Mode, the Brother's attacks do 25% more damage, as well as Bloodfang gaining a new attack that summons buzzsaw-like projectiles made of blood.

Drops
Brothers Jaw Mask (14.29)

Oculus Trophy (10%, Oculus only)

Bloodfang Trophy (10%, Bloodfang only)

Super Healing Potion 5-15

Souls of Red 10-30

Spiky Saw (1/5)

Brotherly Staff (1/5)

Blood Boiler (1/5)

Bloodclot Bow (1/5)

Ligament (1/5)

Brothers Jaw Loot Bag (100%, E. Mode only)

Blood Butcherer (100%, inside loot bag)