Welcome to the impossible difficulty!

so there are many features in this datapack:

1) There are ravagers instead of zombies.
2) Evokers instead of Iron Golems.
3) Chickens, cows, pigs and sheeps are turning into vindicators.
4) Baby zombies with OP armor that riding on a spider are spawn netrully in the night.
5) Sand Borns you when you stand on it.
6) Nether bricks explode when you stand on them.
7) Standing inside a nether portal gives you the wither effect.
8) In The End there are ghasts and phantoms.
9) to all the types of logs there is only a small chance to get one plank.
10) Stone can drop nothing, stone, or cobllestone.
11) Blazes can drop fire charge, blaze powder and blaze rod.
12) Endermans can drop black dye and ender pearls.
13) And when you start the challenge you get bad effects for one minute.

To start the challenge just type /reload.

Good Luck!