This is the Coal Soldier from the Ore Army.
Note: Minify the command to avoid issues :)
Slenderman Talk Commands To Creep Out Your Friends
Small Prison Kit!
Lapis Archer
Vanilla Turf Wars Gun Salesman
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)