This mod adds Herobrine into your world, and adds the creepy pyramids to it as-well. It adds the 'Herobrine's Ultimate Weapon', the Herobrine's Temple in the nether. In the next update, we will add a Herobrine dimension with lots of stuff that you can explore and fight.
UPDATE 1.1
Added:
Herobrine Temple
Herobrine's MultiTool
Fixed:
Herobrine's AI and behavior
Herobrine's Sword actions
Please note that this mod is still in progress, and might have bugs and issues. If you have any suggestions or reports, please comment them done in the comments.
Thank you!