It summons an effect cloud. Enjoy!
Note: Minify the command to avoid issues :)
testtesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttest
unlucky Enderman
Evil chicken jockey
Pufferfish God
HOTEL ONLY ONE COMMAND BLOCK
"Herobrine joined the game."
make houses!
BIG TNT BLOCK!