Hello again!!! I am going to teach you how to find magma cubes or make an area where they will spawn. First, I will start with how to find them. First you have to go to the nether. Next you have to look for a flat area with a lot of light there. Lastly, if there are no magma cubes there, repeat steps one and two and probably you will find one on your second or third try. Next here are some ways to make areas they will spawn in. First you go into the nether. Next, you have to find an area where you will want them to spawn. Next, You dig out the areas where there is small hills or a bigger hill and flatten that land out. Lastly, put some torches near there for extra light so you can be determined that one will come.