Parallel drainage pattern. A parallel drainage system is a pattern of rivers caused by steep slopes with some relief. Because of the steep slopes, the streams are swift and straight, with very few tributaries, and all flow in the same direction.
1 In Creative, the player can use spawn eggs to spawn most mobs. 2  When mobs are spawned this way, all normal spawning requirements, such as light level and block type, are ignored. 3  Any entity can be spawned using the /summon command.
Monster Mobs Guide. NOTE: Most hostile mobs spawn at a light level of 7 or less. To fend off mob spawns late at night out in the open, leave torches to light the area. Monster Spawner. 1  Black metal cage blocks that appear in strongholds, dungeons, abandoned mine shafts, and Nether fortresses are called Monster Spawners.