To address your question directly, it's important to clarify that Magma Cubes in the game do not spawn from a "magma spawner" block like other hostile mobs might from a dungeon spawner. Magma Cubes typically spawn naturally in specific areas, primarily within the Nether biome known as Basalt Deltas, or they appear when larger Magma Cubes are defeated.
If your goal is to prevent smaller magma cubes from appearing after encountering larger ones, there's a specific method to stop them from splitting.
Preventing Small Magma Cubes from Spawning
When a large Magma Cube is defeated, it splits into smaller versions, which then split further. To completely stop the cycle and prevent these smaller cubes from spawning, you need to handle the large one differently than just killing it.
Based on the reference provided, the effective method involves using game commands:
The only way to prevent small magma cubes from spawning is to teleport the big one far below the bedrock instead of using the /kill command.
This means instead of using the /kill command on a large Magma Cube, which causes it to split, you should use a command to teleport it to a location where it can no longer pose a threat or split further, such as deep within the void.
Why Teleportation Works
- Killing Causes Splitting: The standard game mechanic dictates that killing a large or medium Magma Cube causes it to split into smaller versions.
- Teleportation Bypasses Splitting: Teleporting the entity moves it to a different location without triggering its 'death' state in the same way killing it does in terms of splitting. By sending it far below bedrock (y=-60 or lower in modern versions, potentially the void at y=-inf), you effectively remove it from the playable area without allowing it to split.
Practical Implementation via Command
Using the teleport command requires having cheats enabled or being in a creative world. The exact command might vary slightly depending on the game version, but a common format to teleport the nearest large magma cube to the void would look something like:
/tp @e[type=magma_cube,limit=1,sort=nearest,tag=!teleported_magma_cube,nbt={Size:3}] ~ -1000 ~@e[type=magma_cube,...]targets Magma Cube entities.nbt={Size:3}specifically targets the largest size (Size 3).~ -1000 ~teleports it to the same x and z coordinates but a very low y-coordinate (-1000 is far below bedrock).tag=!teleported_magma_cubeand potentially adding the tag afterwards could help prevent immediately re-selecting the same one if multiple are present, but for a single large one, it's simpler.
Alternatively, targeting the nearest large one if you're looking at it:
/tp @e[type=magma_cube,limit=1,sort=nearest] ~ -1000 ~(Ensure you are targeting the large one, maybe by size or proximity)
| Action Recommended | Why it Works / Why it's Necessary |
|---|---|
| Teleport Large Magma Cubes | Prevents them from splitting upon 'removal'. |
Avoid /kill Command on Large Ones |
Using /kill causes splitting into smaller cubes. |
| Target Large Ones (Size 3) | This method specifically stops the source of splitting. |
Stopping Natural Spawning
If your issue is with Magma Cubes spawning naturally in an area (like Basalt Deltas), you would need to employ standard mob spawning prevention techniques for that area, such as:
- Lighting: Magma Cubes, like most hostile mobs, require a certain light level to spawn. Increasing the light level in the area (using torches, glowstone, etc.) can prevent them from spawning.
- Blocking Spawn Locations: Mobs can only spawn on certain block types and require space. Filling in areas or covering suitable blocks with materials like slabs or carpets can prevent spawning.
However, the method of teleporting the large ones is specifically for preventing the split-spawning cycle.
In summary, there isn't a "magma spawner" block to disable. To prevent smaller Magma Cubes from spawning from larger ones, you must teleport the large ones away rather than killing them. To stop natural spawning, rely on standard mob prevention methods like lighting and blocking spawn points.
