Dynamite allows you to destroy rocks and clear shafts in one blast! The dynamite has power levels, but it doesn’t mean you can destroy the stone of the same level in one go.
 
 
Low-level stones can be easily destroyed, but you might need a few explosions for more sturdy stones of the higher levels. Dynamite takes 5 minutes off as if it were a Goblin at the same level.
 
 
Drag & release the Dynamite on an item a goblin can reach, and it will instantly damage it. Hold the Dynamite on any accessible target to have a preview of the damage it will deal.

You can also merge the dynamite similar to goblins to make more powerful explosives! There’s a limit, though. You can only ever have a dynamite +3 levels above your highest goblin.
 
 
You can only have 4 Dynamite out at a time.