Custom mob spawner mobs are super fast even with slowness effect

Custom mob spawner mobs are super fast even with slowness effect

I was attempting to create a custom mob spawner that would spawn skeletons with certain attributes, and attack the player at a reasonable speed.

The skeletons that were spawned were ridiculously fast! I even gave them the slowness effect with an amplifier of 10!

1. put following command in command block and execute:

setblock -1008 68 327 mob_spawner 0 replace {SpawnData:{ActiveEffects:[{Id:2,Amplifier:10,Duration:999999,Ambient:1,ShowParticles:0}],HandItems:[{id:bow},{id:iron_axe}],ArmorItems:[{id:iron_boots},{id:chainmail_leggings},{id:iron_chestplate},{id:golden_helmet}],Attributes:[{Name:generic.followRange,Base:100}],Health:30.0f,id:Skeleton},SpawnCount:2,SpawnRange:2,maxNearbyEntities:3,Delay:20,MinSpawnDelay:60,MaxSpawnDelay:100,RequiredPlayerRange:100}