How to make a super cheap and efficient mob farm with very little redstone. Great for skyblock.
I suggest you build an iron farm first, and build a smaller simpler mob farm to get the 13 redstone from witches.
Links to other stuff:
●Processor: Intel Core i7-3770 Ivy Bridge 3.4GHz
●Motherboard: ASUS Sabertooth Z77 LGA 1155
●Video Card: ASUS GeForce GTX 670 2GB 256-bit
●RAM: [2x] G.SKILL Ripjaws X Series 8GB 240-Pin
●Hard Drive (Spinning):
●Hard Drive (Solid State):
●Power: Rosewill BRONZE Series 1000W
●Case: IN WIN GRone White