Dwarven Detection Proficiencies - Optional (CBD)

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Not all dwarves have the same ability to detect underground phenomena, some are better than others. Detection proficiencies may be used as an alternative to the system described on page 21 of the Player's Handbook to detect slopes, new tunnels, sliding walls, stonework traps, pits, deadfalls, and depth underground. Like nonweapon proficiencies, it is an optional system. If you don't use nonweapon proficiencies in your game, then detection proficiencies may be ignored. If you do use them, detection proficiencies will adapt the abilities more smoothly to your game.
==Number of Detection Proficiencies==
A dwarf character receives his standard number of nonweapon proficiency slots according to his character class. In addition, he receives another five slots solely to buy detection proficiencies. The initial number of proficiencies increases if he is of high Intelligence. Detection proficiency slots must be used to purchase detection proficiencies, but may be spent on any the player wishes.
==Using Detection Proficiencies==
Detection proficiencies may be used any time a dwarf is underground, within 10 feet of the particular phenomena. Determining depth underground is the exception to this rule and may be attempted any time.
To use a detection proficiency, a dwarf must concentrate for one melee round. Any modifier for the proficiency listed in the Detection Proficiency Table is added to the appropriate ability score. A +1 modifier is acquired if the dwarf is actually touching stonework. Detection proficiencies are checked by rolling 1d20. If the character rolls his adjusted ability score or less, he is successful, otherwise he fails. A roll of 20 always fails.
If successful, the dwarf sees the phenomenon or becomes aware of his approximate depth underground. If he fails, he cannot try again within that 10-foot area.
Improving Detection Proficiencies
The Proficiency Slots Table shows the number of levels the character needs to attain to acquire new detection proficiency slots. These slots may be spent on any detection proficiency, but not nonweapon or weapon proficiencies. However, nonweapon proficiency slots may be spent to improve detection proficiencies.
 Dwarven Detection Proficiencies Table
Detect or Determine... 	# of SlotsRequired	RelevantAbility	CheckModifier
Grade or Slope in Passage 	1 	Wisdom 	+4
New Tunnel/Passage Construction 	1 	Wisdom 	+4
Sliding/Shifting Walls or Rooms 	1 	Wisdom 	+2
Stonework Traps, Pits, and Deadfalls	1 	Wisdom 	0
Approximate Depth Underground 	1 	Wisdom 	0
Category:The Complete Book of Dwarves