/summon EnderDragon ~0 ~1 ~0 {CustomName:wither,CustomNameVisible:1,Attributes:[{Name:generic.movementSpeed,Base:0.1},{Name:generic.attackDamage,Base:50},{Name:generic.followRange,Base:999},{Name:generic.knockbackResistance,Base:55},{Name:zombie.spawnReinforcements,Base:1.0F}],ActiveEffects:[{Id:22,Amplifier:1,Duration:999999},{Id:15,Amplifier:1,Duration:999999},{Id:21,Amplifier:1,Duration:999999},{Id:17,Amplifier:1,Duration:999999},{Id:7,Amplifier:1,Duration:999999},{Id:6,Amplifier:1,Duration:9