Maybe I'm going crazy but I remember reading about the investigator's inspiration having the exploding feature. Something along the lines of "if you roll a 6 on the inspiration dice you get to roll another inspiration dice on the same check". Though I went through the investigator class just now and couldn't seem to find anything like that. Does anyone happen to know where these rules exist in pathfinder (assuming they do and i'm not just creating a false memory)?
This is a feature for on of the Swashbucklers deeds I'll go find it.
Swashbuckler Deed: Derring-Do:
At 1st level, a swashbuckler can spend 1 panache point when she makes an Acrobatics, Climb, Escape Artist, Fly, Ride, or Swim check to roll 1d6 and add the result to the check. She can do this after she makes the check but before the result is revealed. If the result of the d6 roll is a natural 6, she rolls another 1d6 and adds it to the check. She can continue to do this as long as she rolls natural 6s, up to a number of times equal to her Dexterity modifier (minimum 1).
This what you thinking of?
This is so not what I expected the thread to be about. : (
Sleuth Invetigator also has a similar feature.
Investigator Sleuth Deed: Daring:
Daring (Ex): At 1st level, a sleuth can spend 1 luck point when he makes an Acrobatics, Climb, Escape Artist, Fly, Ride, or Swim check to roll d6 and add the result to the check. He can choose to add this die after he rolls. If the d6 roll is a natural 6, he rolls another d6 and adds it to the check. He can continue to do this as long as he rolls natural 6s, up to a number of times equal to his Intelligence modifier (minimum 1).