3 In 1 Nether mob farm - Ghasts, Magma Cubes and Zombie Pigmen.

The worlds first Ghast farm has expanded into the worlds first Ghast, Magma Cube and Pigman farm, all in one!

Unfortunately it's still not completely perfected because the magmas still have the ability to foul the system on occasion but I'm hoping to figure out a way to beat the little buggers somehow. ... https://www.youtube.com/watch?v=HUKYdv3Hx-o