GravityExpansion/Auto-killer
The "Auto-killer" is a mechanism added by the modification of the GravityExpansion project GravityCraft exclusive mod add-on DraconicEvolution, which allows you to extract resources from spawners without having to kill mobs and build separate ones for this structures.
Getting
You can create or purchase it in the in-game store by pressing F4.
Usage
The auto-killer works with a stabilized spawner from the mod DraconicEvolution, an electric spawner from the mod EnderIO and regular spawners from Minecraft.
To start producing resources from mobs, you need to place a mob spawner on any convenient side of the Auto-Killer. Up to 6 spawners can be placed around one Auto-Killer. But keep in mind that if you place six spawners, there will be no direct access to the Auto-Killer, and you will need to free up one of the sides.
To pump out experience, you need to connect liquid pipes to one of the sides of the Auto-killer, and to collect resources, install a chest, object pipes, or a ME interface from the mod applicedenergistics 2 into which the Auto-killer will automatically feed items from the internal inventory.
It is worth noting that Auto-killer supports enchantments, but each enchantment must be set as a single book with a single type of enchantment.

Supported types of enchantments
- Reaper (Increases the chances of obtaining a mob soul from the Draconic Evolution mod)
- Sharpness (Speeds up the Auto-Killer)
- Fire aspect (Immediately processes resources as if they had already been processed in a furnace)
- Looting (Increases the amount of resources obtained)
There is also a car killer video guide
See also