Spawners

Spawners are obtainable in Hell SMP, using silk touch.

Spawners are often seen being extremely valueable, often being worth over a stack of diamonds. These spawners are then used usually to make XP farms, with some containing over 50 spawners.

Make sure to guard your spawners well, since theft of spawners are common.

There is also a spawner shop near spawn, which sells natural spawners (zombies, skeletons, spiders, etc.) to unnatural spawners (parrots, cows, wither skeletons, hoglins, even elder guardians once). The spawner shop refreshes every month.