An example of a Java Edition summon command without AI would be /summon minecraft:creeper ~ ~ ~ {NoAI:1}. This would create a creeper mob with no AI, incapable of moving or exploding, or acting up ...

The ghastling is the happy ghast's baby variant in Minecraft. This creature was added to the title with the Chase the Skies game drop.

In Bedrock, you can summon it directly by typing slash summon Warden, while on Java, the command to summon it is Minecraft colon Warden.