This command you can spawn The Queen with no mods.
Note: Minify the command to avoid issues :)
The King Boss Battle
Minecraft 1.9 Features only one command
MC Story Mode Hoe
Nether Dragon in Minecraft?
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)