This is a quintessence of everything I've built in Monster Science.

You can do various things with hostile mobs using just one structure.

MTandi's Universal Mob Grinder a.k.a UMG

- Mobs are spawning at the toggle-able high volume mob grinder.
- Toggle-able automatic mob sorter which can restart itself when Player left the area and comes again later.
- Mob HP controls (you can kill them or let live with 1 heart using lever near the head icon)
- You can send Skeletons and Creepers to their chambers in the Nether to override mob cap and accumulate hundreds of mobs. (be careful with this one)
- There is a built-in semi-automatic Record farm controllable just by 2 buttons and pressure plate.
- You can send Zombies right to the Manual sorter to separate Zombies in armor, Zombies that can carry loot, or Zombie Villagers from regular Zombies. Sorted Zombies are moved to the room where you can Purify Zombie Villagers and board them on the minecarts to make their transportation easier.

I'll upload the tour with commentary in few days and explain everything.