Also works with magma cubes -
/summon LavaSlime ~ ~ ~ {Size:20}
Note: Minify the command to avoid issues :)
Super Crazy Armor!
SUPER ARMOR!!!!!!!!!!!!! #2:Leggings
THORS HAMMER IN ONE COMMAND MADE BY MEEEEE!!!
small groWING WITHER!!!!!
Pet ENDER DRAGON!!!!!
Wither Storm Boss in ONE COMMAND
HEROBRINE COMMAND
HEROBRINE BOSS BATTLE (See YouTube for details)