The Underground Dimension

     So this dimension will take you to the center of the earth well almost the center and the top of the dimension has bedrock, and so to make the portal you have to use at least 8 magma blocks and 2 emerald blocks one at the center top and the other at the center bottom, and use 2 gravel the middle right and left. So this dimension is where you can find all kinds of ore and have a better chance of getting rare ore but there's underground Mobs that will stop you from mining ores like Guardians they are bigger than a Golem and where golden armor and a axe or a sword it's random, in addition there will archers, and healers that will support Guardians. The archers will shoot out poison arrows, arrows of slowness and arrows, and healers will heal anybody so you have attack them first if you want the battle be done faster. So far this is the limit of the my imagination of the underground dimension goes.