Please help

[KillSwitch191]

I am trying to build a hostile mob grinder. I have purchased monster spawners, but every time I lay one it turns into a pig spawner. How do I make it spawn hostile mobs

 

[Kartana]

Changing the type of spawner is a donor perk. For example, to change a spawner to a skeleton one, you have to be a Master rank. You can get a full list by looking at the Anubis store.