/summon EnderDragon ~ ~1 ~ {CustomName:"Douglas the Dragon",CustomNameVisible:1,Attributes:[{Name:generic.maxHealth,Base:20}],PersistenceRequired:1,NoAI:1,Riding:{id:"Wolf",CollarColor:0,Owner:,Sitting:0,PersistenceRequired:1,Silent:1,ActiveEffects:[{Id:10,Amplifier:4,Duration:1999999999999980,ShowParticles:0b},{Id:14,Amplifier:1,Duration:200000000000000000000,ShowParticles:0b}]}}