At The Edge Of The World
Oracles can use Charisma modifier for cleric spells and effects that use Wisdom, such as spiritual weapon. As written, those effects say “Wisdom” (because they were written before the idea of the oracle class as a Charisma-based caster), but Oracles may use Charisma modifier instead.
CRAFT (DEMOLITIONS) (INT; TRAINED ONLY)
The character has been thoroughly trained in the use of explosives, including grenades.
Check: On a successful Craft (demolitions) check, based on the type of demolitions being used, the character can successfully prime and set the demolitions.
Action: See description of individual explosive. Craft checks are made by the day or week (see above).
Try Again: Yes, but each time you miss by 5 or more, you ruin half the raw materials and have to pay half the original raw material cost again. Obviously you cannot try again with that particular explosive if you have rolled a critical failure.
Special: While most skills can succeed even on a roll of a 1, a roll of 1 while priming and setting demolitions is a critical failure, the explosives are immediately detonated with disastrous results for the character and all those within the standard blast radius.
Synergy: A character with 5 or more ranks in Craft (alchemy) receives a +2 bonus on Craft (demolitions) checks. If you have 5 ranks in a Craft skill, you get a +2 bonus on Appraise checks related to items made with that Craft skill.