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Lyrium Blast Charge

A Lyrium Blast Charge is a 5 pound bag of Lyrium Dust and Iron Nails with a timer used to detonate it. Its primary purpose is to break down doors, gates, ect. and as such does double damage to structures. When activated it detonates after 1 minute and deals (10d6+5) force and (3d6+15) piercing damage to everything in a 10 ft. radius unless they make a DC 20 Dexterity check. Using Thieves' Tools, Rope, Hempen 50', and 20 minutes you can rig the device to explode instantly when set off by a trip wire. This wire must be connected to something else such as a door, stake, or a bookcase. This tripwire can be as long as 10 ft. A DC 13 Perception check gives away the location of the trip wire.