I had made a map like this in the past but it had a lot of mistakes which I corrected and now you can properly fight against the 3 Minecraft Bosses.
Move on the next level by breaking the grey glass and pressing the stone button..GOOD LUCK!

Please support me at my Youtube Channel and I hope you will enjoy the map
Thank you...

**At the end you can change your gamemode and get out from the little hole that I left to ckeck out the command blocks!! (if you want to)

(You can also play with fiends)