You will typically find Monster Spawners in dungeons, strongholds or the Nether Fortress where they spawn hostile mobs such as skeletons, spiders, cave spiders, zombies, silverfish or blazes.When you move closer to a spawner, you will see flames burning and a miniature version of the mob will...
Be wary of spider spawners lurking beneath the webs. If you see sculk (a dark blue block with light blue pulsing spots), you may be near an ancient city. Mine in each direction to locate it, and make sure to sneak! If you make too much noise, you may cause a warden to spawn. ...