Minecraft wiki entry for Multiplayer_PvP_bases, associated text: Your enemy has an underwater base inside an ocean monument. The only entrance is a nether portal inside the monument. The walls are reinforced with 3 layers of obsidian, and the elder guardians are all trapped inside. The whole monument is filled with water, except for the nether portal room, which is under the monument. No one is in the base, but there is a drowned army locked inside. All the drowned are given Impaling V tridents and each one has full iron armor.