Dr Trayaurus from DanTDM!
Note: Minify the command to avoid issues :)
Potion of a Slime
Really OP Armor!!!!!!!!!!!!
Helicopter :)
Summon DanTDM!!!!!
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)