Build /summon commands with custom NBT for every vanilla mob — baby variants, equipment, colors, and mob-specific options.

Run /summon from an operator’s chat, a command block, or the server console. Not every internal NBT field is covered — this generates the commonly-used ones for each mob.

How to Use the Magma Cube Summon Generator

  1. Type magma cube into the search box, or select it from the Hostile group in the mob dropdown.
  2. Set the Size field to any whole number from 0 to 127. Vanilla naturally spawns magma cubes only at sizes 1, 2, and 4, but this generator accepts the full NBT range.
  3. Use the shared fields above the panel – Health, Glowing, Custom Name, and the rest – for anything else.
  4. Copy the finished /summon command into a command block, server console, or operator chat.

Command Syntax & NBT Reference

Base command: /summon minecraft:magma_cube ~ ~ ~ {NBT}. The Size field writes:

  • Size:<n> – controls the cube’s physical scale, jump height, and damage. Naturally spawning magma cubes only ever come in sizes 1, 2, or 4 in the Nether – sizes like 0, 3, or anything above 4 only exist via /summon or this generator, not natural world spawning.
  • The generator defaults Size to 1 if left unchanged.

Size also scales jump height directly – a larger magma cube jumps noticeably higher (roughly its size in blocks) and moves faster between jumps than a small one, on top of dealing more contact damage, since magma cubes attack purely by leaping onto their target rather than a separate melee swing.

Frequently Asked Questions

Why doesn’t the magma cube burn even though it spawned in the Nether or near lava?

Magma cubes are inherently fireproof – that immunity is a fixed property of the entity type, not something this generator’s NBT enables or disables. That’s also why they can spawn directly on magma blocks without taking damage, unlike almost every other mob.

Does a bigger Size make the magma cube split into more cubes on death?

Yes, similar to slimes – a magma cube above the smallest size splits into smaller magma cubes when it dies, cascading down in size until they reach the smallest tier, which doesn’t split further.

Can I summon a magma cube outside the Nether and have it behave normally?

Yes – this generator’s /summon command works in any dimension, and a magma cube placed in the Overworld or the End fights and moves identically to one spawned naturally in the Nether. Its fireproof status and jump-attack behavior aren’t tied to which dimension it’s standing in.

What’s the actual difference between a same-sized Magma Cube and Slime?

At equal Size values, a Magma Cube deals more contact damage, jumps higher, and is completely fireproof, while a Slime takes normal fire/lava damage and is generally a bit weaker per hit. Both share the same Size-based splitting-on-death mechanic, but the two are separate entity types with different combat stats under the hood.

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