The bosses commands (there are 4 commands

/summon Ghast ~ ~1 ~ {Attributes:[{Name:generic.followRange,Base:50},{Name:generic.maxHealth,Base:600}],CanPickUpLoot:1,ExplosionPower:3,HealF:102,ActiveEffects:[{Id:11,Amplifier:"",Duration:999,ShowParticles:1b}],Riding:{Anger:2,Equipment:[{id:"diamond_sword",damage:0},{id:"diamond_boots",damage:0},{id:"diamond_leggings",damage:0},{id:"diamond_chestplate",damage:0},{}],id:"PigZombie",Fire:-1,CanPickUpLoot:1,ActiveEffects:[{Id:11,Amplifier:"",Duration:999,ShowParticles:1b}],Attributes:[{Name:generic.followRange,Base:50}]}}

/summon Zombie ~ ~1 ~ {ActiveEffects:[{Id:2,Amplifier:"",Duration:999,ShowParticles:1b},{Id:11,Amplifier:"",Duration:999,ShowParticles:1b}],Equipment:[{id:"diamond_sword",damage:0},{id:"diamond_boots",damage:0},{id:"diamond_leggings",damage:0},{id:"diamond_chestplate",damage:0},{id:"diamond_block",damage:0}],Attributes:[{Name:generic.followRange,Base:60},{Name:zombie.spawnReinforcements,Base:60}],CanBreakDoors:1,CustomName:"The Diamond Boss"}

/summon Guardian ~ ~1 ~ {Elder:1,CanPickUpLoot:1,HealF:100,Attributes:[{Name:generic.followRange,Base:60},{Name:generic.attackDamage,Base:3},{Name:generic.movementSpeed,Base:1}],ActiveEffects:[{Id:19,Amplifier:"",Duration:90,ShowParticles:1b}]}

/summon Wolf ~ ~1 ~ {Angry:1,HealF:90,ActiveEffects:[{Id:11,Amplifier:"",Duration:900,ShowParticles:1b},{Id:2,Amplifier:"",Duration:999,ShowParticles:1b}],Attributes:[{Name:generic.movementSpeed,Base:null},{Name:generic.knockbackResistance,Base:1},{Name:generic.attackDamage,Base:4}]}