I would like to have a spider spawner, this would help people to revert potions.
Also an Enderman spawned will help to get enderpearls.
The Enderman spawner needs to be expensive because you can use the enderpearls to get out of a PVP battle, it must cost the same as a iron golem spawner.
The spider spawner must be the same as the creeper, skeleton and zombie spawner.
Thank you for your time