Enhanced Spawners 2

Getting started:

The first thing you need to do is acquire a nether star and craft it with 2 blaze rods to get the Nether Wand.

Right click a mob with below half health to get an Enhanced Spawner that will spawn that mob.

The Nether wand has one use so decide which mob you wish to spawn wisely.

You may break and place the spawner as you wish without losing it.

To upgrade the spawner, simply right click with redstone, lapis, or emerald blocks.

To get maximum efficiency, use 20 redstone blocks

To make the spawner spawn more than one mob at a time (up to 5) use 4 lapis blocks

To make the spawner spawn whether a player is near or not, use one emerald block

Finally, to activate the spawner, apply redstone signal!

This spawner can spawn any mob from any mod thus tested!