Hello guys and girls! I created another so-called "Vanilla Mob"!

-Play on 1.8.3!
-This is NOT multiplayer compatible.
-Don't fight the Hydra with a flame or infinity bow. Just use a normal one! (It will make some of the invisible armorstands burn, and infinity arrows have other nbt values)
-If you are a Youtuber showcasing this, link this PMC post and my YT-channel! (www.youtube.com/user/McMakistein)
-If you need help, make sure to check out the guide in the map. It will give you detailed information about everything you need to
  know!
-Play on 10 chunks render distance! (or below) Cuz this thing will cause lag! :P
-There is a LOT of redstone going on and you will need a powerful computer in order to play this.
-Diamond?

Hope you enjoy!