【How-to】How do i get the deepnest mask shard

Take the Stagway back to Queen’s Station, then head back down to the Mantis Village and into the arena where you fought the Mantis Lords. They bar the path to Deepnest, so if you did not defeat them earlier, now is the time. With the Mantis Lords defeated, head left into the next area and you’ll arrive in Deepnest.