This mod add herobrine.
He spawns if you make a totem.
You need:
Fire
Cursed Netherrack
Cursed Netherrack
Golden Block
Golden Block
For Cursed Netherrack you need:
Bone | Rotten Flesh | Bone
Rotten Flesh | Netherrack | Rotten Flesh
Bone | Rotten Flesh | Bone