It is a Zombie riding a Wither Skeleton Skull.
Have Fun!
Note: Minify the command to avoid issues :)
Purified Water
Bedrock Barbarian
Splash Potion of Dizziness (Nausea)
Zombie Charger Soldier
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)
genessee
genessee
darkknight3227
galbby5
deadpoolbadhair