Better mineshafts-Storage room

Storage room: There would be a spider spawner and some storage chests with cobwebs and ores. This'd be a great balance between challenge and reward. This could be a normal Minecraft storage system, but with cobwebs everywhere and with the spawner in the center.

This would grant a better experience to the player and will make the mineshafts a better point of interest.

Thank you, for reading!