Why Is There No .json File For The Evocation Fang In The Behavior Pack Entities Folder?

Why Is There No .json File for the Evocation Fang in the Behavior Pack Entities Folder?

Jarvis July 15, 2026 2 minutes read

Why Is There No .json File for the Evocation Fang in the Behavior Pack Entities Folder?

Quick Answer: The Evocation Fang entity (minecraft:evocation_fang) is a hardcoded entity in Bedrock Edition. Its behavior is defined in the game engine rather than in data-driven JSON files, which is why no evocation_fang.json exists in the vanilla behavior pack or the bedrock-samples repository (GitHub issue #8).

Details

Unlike most entities in modern Bedrock Edition (which use data-driven JSON definitions in behavior_pack/entities/), the Evocation Fang remains a legacy hardcoded entity. This means:

You cannot modify its behavior via behavior pack JSON files
Custom evocation fang variants require scripting (Script API) or workarounds
The entity definition in entity/evocation_fang.json (resource pack) only controls visuals, not behavior

What You Can Customize (Resource Pack)

The resource pack entity file controls appearance only:

# resource_pack/entity/evocation_fang.entity.json
{
  "format_version": "1.10.0",
  "minecraft:client_entity": {
    "description": {
      "identifier": "minecraft:evocation_fang",
      "materials": { "default": "entity_alphatest" },
      "textures": { "default": "textures/entity/evocation_fang" },
      "geometry": { "default": "geometry.evocation_fang" },
      "render_controllers": [ "controller.render.evocation_fang" ],
      "spawn_egg": { "texture": "evocation_fang" }
    }
  }
}

Workarounds for Custom Behavior

Script API (Beta): Use @minecraft/server to spawn and manipulate fang-like projectiles with custom behavior
Custom Projectile: Create a custom projectile entity that mimics fang behavior (damage, particle effects, lifetime)
Entity Component: Use minecraft:projectile component on a custom entity with fang-like properties