Bottomless Grave
From MHWiki
Currently the most powerful of the shadow traps, The Bottomless Grave trap appeared in the Digby Trapsmith at Halloween 2008, for a cost of 673,630 gold, with a points requrement of 728,000.
Power: 1400
Power Type: Shadow
Power Bonus: n/a
Accuracy Bonus: n/a
Luck: 5
Cheese Effect: No Effect
Although Digby drilling technology has often been regarded as the quickest to dig a grave, ambitious scientists were still tempted to experiment with rocket-propelled drills.
The result of these experiments has now turned into researching where the high speed drills have gone.