Granted Powers: The wonders and dark secrets of the deepest caves give you strength.
Cavesight (Sp): You can grant darkvision 60 feet to a willing creature you touch. This effect lasts 1 minute, or 1 hour if used on yourself. You can use this ability a number of times per day equal to 3 + your Wisdom modifier.
Tremorsense (Ex): At 6th level, you gain tremorsense 30 feet. At 12th level, you gain tremorsense 60 feet.
Domain Spells: 1st—detect aberration, 2nd—stone call, 3rd—deeper darkness, 4th—echolocation, 5th—wall of stone, 6th—conjure black pudding, 7th—statue (looking like a stalagmite or stalactite), 8th—earthquake, 9th—imprisonment.