As its name, you can obtain a command block through commands. Make sense, right? There are 2 commands you can type in the chat (press T or Enter) to get a command block: /give @s minecraft:command ...

You can literally make working cars with them and recreate Crossy Road, but this Minecraft creator has built an entire transforming village with command blocks.

Minecraft players can turn off mobs in their server settings, using commands, or they can even turn off individual monsters using Command Blocks.