HOW DO U USE COMMAND BLOCKS?

plz. i would love to use them

and where do you find them?

ok, this is kind of confusing, Command blocks can only be attained in creative with the command /give (minecraftname) minecraft:command_block
when you get the command block, use it by putting in a command like /gamemode s
to turn it on use a lever or pressure  plate and something like that

Also you need to have cheats on

And I used a command block to spawn a ton of of bosses and watch them fight until I figured out this could be done in chat with the command /summon (entity ID) and therefore, I lagged out my computer with about 40 enderdragons and like 30 withers.

Thx!

Actually, you can just put /give @p command_block, that works to and is simpler.  Check here for awesome commands! COPY AND PASTE THEM INTO A COMMAND BLOCK AND POWER IT UP!

https://minecraftcommand.science/

cool