Only One Command | Minecraft | Mr. Creeper

/setblock ~ ~ ~ mob_spawner 0 replace {SpawnCount:4,SpawnRange:10,maxNearbyEntities:15,Delay:5,MinSpawnDelay:40,MaxSpawnDelay:60,EntityId:Creeper,SpawnData:{CustomName:Mr. Creeper,CustomNameVisible:1,Attributes:[{Name:generic.maxHealth,Base:5},{Name:generic.movementSpeed,Base:0.4},{Name:generic.knockbackResistance,Base:999}],ExplosionRadius:8,Fuse:1,ActiveEffects:[{Id:11,Amplifier:1,Duration:999999}]}}