The mobs that started appearing in Ender IO have now been moved to a separate mod called Ender Zoo. The first version has been released with the addition of Fallen Knights to keep the Enderminies and Concussion Creepers company. Watch out for the mounted archers, you might want to bring a bow to that fight...
CreditsSphax for the base textures I used
Shadowake for the Dire Slime
Changelog23 Aug 2015 - Updated to Ver 22.214.171.124. Added Dire Slime and Structure Tool
13 Dec 2014 - Initial release