en 1.10 - 1.10.2 /summon Mobs & Pets

/summon Zombie ~ ~1 ~ {Equipment:[{id:"diamond_axe",damage:0,ench:[{id:8,lvl:100},{id:11,lvl:1}],display:{Name:"Axe of the Omega"}},{id:"diamond_boots",damage:0,ench:[{id:0,lvl:100}]},{},{id:"diamond_chestplate",damage:0},{id:"skull",damage:3}],spawnCount:100,spawnRange:100,maxSpawnDelay:1,requiredPlayerRange:1000,Riding:{id:"WitherBoss"}}