[1.12] SpawnerCraft Mod Download

SpawnerCraft Mod allows you to have the power and convenience of moving and creating (standard) spawners in survival. By collecting the essence of the mob, you are able to infuse a mob cage with the mob to create a spawner, or to spawn mobs directly. Now, to get villagers into your farm, you just need to murder them, collect their essence, and spawn them in place! To create a pig farm, just hook up a spawner! (Warning: does not edit the functionality of spawners, so mob spawners are subject to the standard rules of mob spawning: conditions must be favorable to mob spawning; i.e. passives have light and grass, aggressive have dark and space.) You can even create a blaze spawner in the overworld so you can finally use that perfect design that requires water.

Features:

Killing any mob with a Mob Fishing Pole drops 1 Essence of Mob.
Four Essence of Mob in a square creates one Agglomeration of Mob.
Four Agglomeration of Mob creates one Spirit of Mob.
Spirit of Mob acts like a Spawn Mob, right click summons a mob.
Mob Spawners when destroyed drop 1 Empty Spawner.
Clicking on a Mob Cage with a Spirit of Mob turns it into a Mob Spawner.
Works with custom mobs in theory if they have registered a spawn egg.
Includes options for allowing Mob Souls of some vanilla mob variants, including Wither Skeletons, Husks, and Strays.

Mob Souls