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.
We first need our mobs to spawn. The way this happens will depends on the type of mob you want to farm. Hostile mobs in the Overworld will spawn in the dark, while blazes tend to spawn mostly from spawners. Other spawners are also availalbe in the Overworld, which could help you farm 1 specific mob.