The Nether Reor is huge part of Minecraft PE. It is the only known way to get Melon Seeds and Pumkin seeds. Im not sure about the potato but i got one from the nether reor this time. This video was made to show you how to build a Nether Reor and also show you what the 0.8.0 Nether Reor gives you if your already familiar with the Nether Reor in from previous PE releases.