how summon ender dragon with effects

/summon EnderDragon ~ ~10 ~10 {Attributes:[{Name:generic.maxHealth,Base:10}],HealF:10,Riding:{id:Minecart},CustomName:"Boss",CustomNameVisible:0}


Movement speed slowed down
/summon Enderdragon ~ ~ ~1 { Attributes:[{Name:generic.movementSpeed,Base:0.001}]}

Slowness potion effect
/summon Enderdragon ~ ~ ~1 {ActiveEffects:[{Id:2,Duration:999999,Ambient:25}]}

set follow range to 1
/summon Enderdragon ~ ~ ~1 { Attributes:[{Name:generic.followRange,Base:1.0}],,Riding:{id:minecart}}