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 ...

It is a very easy command to execute (Image via Mojang Studios) You’ll need a command block to make snowballs explosive in Minecraft Bedrock Edition.

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.