Guardian Spawner 4 Hardened Obsidian 4 Compressed Prismarine Crystals 1 Pig Spawner I say Prismarine Crystals because they are the only prismarine item you can get in the open world without needing to kill guardians. ( You can get them from sea lanterns found around monuments ) - Villager Spawner 4 Hardened Obsidian 4 Compressed Emeralds 1 Pig Spawner - Drowned Spawner 4 Hardened Obsidian 4 Compressed Rotten Flesh 1 Zombie Spawner Drowned have the chance to drop Tridents, which is why I feel a zombie spawner is more suited than a pig spawner.