Bonescale was added at the release of beta.
It can be bought at an unnamed trader at -230, 64, -189
The items are bought with Candy Apples and Death Petals.
The items include
Bonescale Helmet - True Sight Helmet
Bonescale Chestplate - Strength 1 Chestplate
Bonescale Leggings - Increased HP Leggings
Bonescale Boots - Speed 1 Boots
Pelagis - Water Breathing Helmet
Dreadblade - Mob Slaying Sword
Eldrid - Efficiency 6 Mending Pickaxe