KingtheTitan, has requested me to do more of these. BIG SHOUTOUT TO HIM~!

Anyway, let me show you how to do this.
First things first, grab a sculk sensor, 6 white wool (any color), and 1 tnt.

You need to use /fill for this, so the sculk sensor does not detect you.
Place a sculk sensor underground.
Then, surround it with white wool, leave the block on top of the sculk sensor to be air, and on top of the air to be white wool.
Then, place the tnt under the sculk sensor, and your friend will go mining.. AND KABOOM! They won't know what hit them. A creeper?

If you enjoy these kinds of blogs, comment blog ideas or command tutorials below. Thank you!