Mimics in Vanilla

Mimics in Vanilla
Use with halfslab technique • http://youtu.be/6H1Rv0GrCnU

/summon Silverfish ~-6 ~ ~ {CustomName:Mimic,ActiveEffects:[{Id:14,Amplifier:1,Duration:30000,Ambient:1}],Riding:{id:Slime,Size:-2,Invulnerable:1,ActiveEffects:[{Id:14,Amplifier:1,Duration:30000,Ambient:1}],Riding:{id:Zombie,Equipment:[{id:},{id:},{id:},{id:},{id:146}],ActiveEffects:[{Id:14,Amplifier:1,Duration:30000,Ambient:1}],Riding:{id:Silverfish,Attributes:[{Name:generic.movementSpeed,Base:2.0}]}}},Attributes:[{Name:generic.attackDamage,Base:3.0},{Name:generic.movementSpeed,Base:0.1}]}