It summons an effect cloud. Enjoy!
Note: Minify the command to avoid issues :)
baby magma spawner
testtesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttest
Super Dirt
Slime Boss
HOTEL ONLY ONE COMMAND BLOCK
"Herobrine joined the game."
make houses!
BIG TNT BLOCK!