Currently, when you encounter a Spawner, you can destroy or domesticate it (like making a skeleton farm). Apart from safety (for noobs who can't torch areas quickly), there is no reason to destroy a Spawner.

What happens when you destroy a spawner in Minecraft?

4 Answers. To break one, use a pickaxe, preferably Iron level or higher. Note, once you destroy one, it will not drop as a block, so break these only if you'd like to get rid of them permanently. While your opinion may differ, I find spawners to be excellent exp farms, and you can turn yours into a mob farm.

How much XP do you get from destroying a spawner?

Mining (destroying) a spawner block gives 15–43 points of experience as orbs.