Merlin’s Mobs are villagers that are invincible and have useful trades at reasonable prices. Merlin’s Mobs are spawned using Spider Eyes on Merlin’s Spawner Block.
The track layer lays rails over a gravel base and creates trestles over valleys.
These specialized Villagers are pretty much immune to hostile mobs. This means than they can keep a village alive even if all of the standard Villagers are killed off. Trader Merchants are spawned from the Spawner Block by right-clicking with a spider eye. These Trader Merchants require gold/silver/copper dust for trades and are in one of 5 categories: