The Orrish are well known for their use of traps. This is a known element when dealing with them, and when exploring their lairs and camps (even outside the Dark Lands), it is prudent to take time and care whenever maneuvering through them. There is a role within their society that amounts to a ‘Trap Master‘ – proficient in creating all manner of traps and tricks with a crew of attendants learning and assisting as part of the Orrish Fighting Forces. There is no signifier for this that has ever been seen – i.e. one cannot tell a goblin trap master from a normal raider. For a goblin raiding party, much of what they do is improvised. Within a group, each one carries crude trinkets, baubles, and materials that the trap master can use, that accumulates as they raid places and get materials. In addition to the normal damage and inconveniences, the trap master also specialize in the making of Wormblat and using materials in The Underlands.
Making Wormblat: The care of and use of Blood Worms in making Wormblat is mostly left to the trap masters.