/give @p command_block 1
Note: Minify the command to avoid issues :)
Herobrine 1.12 One Command
Herobrine Command 1.12 FULL!!!
totem sword
HEROBRINE POTION (ALTAR POTION)
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)