Powered Spawner

The Powered Spawner is a machine from Ender IO that spawns creatures when supplied power. It will spawn mobs as far as 4 blocks away.

Usage
After crafting the machine, it must be combined with a broken spawner on an Anvil to set the type of mob it will spawn. Broken spawners can be acquired by breaking a vanilla Minecraft Spawner. Initially, a broken spawner will have the mob type of the original spawner block, but the mob type can be changed by combining it with a Soul Vial of the desired type in a Soul Binder, which allow spawners to spawn creatures that do not have normal spawner blocks. It should be noted that EnderIO adds specific variants of mobs for the purposes of this block. For example, a Wither Skeleton in a Soul Vial when combined with a broken spawner results in exclusively Wither Skeletons spawning and when combined with a Powered Spawner.

The Powered Spawner can be upgraded with capacitors for increased power storage and spawn rate, at the cost for increased power usage.