Scavenger

A scavenger is a master of mechanical arts rather than alchemical ones, and he gains a competence bonus on Craft (clockwork) checks equal to his class level. He can use Knowledge (engineering) to identify wondrous items as if using detect magic and Spellcraft. A scavenger does not gain any bonuses to or special uses of the Craft (alchemy) skill. Rather than prepare his extracts as consumable liquids, a scavenger constructs small, single-use devices infused with bits of his own magic aura to achieve the same effects. Alchemist and investigator discoveries that affect extracts result in identical effects on a scavenger's gadgets (such as the infusion discovery, which would allow another creature to use a gadget, just as it would allow that creature to use an extract). This ability modifies alchemy.

At 1st level, a scavenger can use inspiration to apply a bonus to Appraise, Disable Device, and Knowledge (engineering) checks without expending a use of inspiration, but he must spend a use of inspiration to apply a bonus on Knowledge, Linguistics, and Spellcraft checks. This ability modifies inspiration.

Beginning at 2nd level, a scavenger can sacrifice one of his gadgets to repair or enhance an adjacent mechanical device, such as a lock, trap, or vehicle. Doing so either repairs 1d6 points of damage per extract level of the gadget sacrificed or applies a bonus or penalty to one specific skill check involved in using the device. The scavenger could, for example, sacrifice a gadget to impose a penalty on all Disable Device checks to disarm a trap, add a bonus on all Disable Device checks to open a lock, or add a bonus on all Profession (driver) checks to drive a carriage. This modifier is equal to twice the extract level of the gadget sacrificed, and lasts for 10 minutes per class level. This ability replaces poison lore.

At 2nd level, a scavenger gains a +2 bonus on all Craft checks to modify or repair creatures of the construct type, as well as a +2 bonus on all weapon damage rolls against constructs. This bonus increases to +4 at 5th level, and to +6 at 8th level. At 11th level, the scavenger gains Craft Construct as a bonus feat, even if he does not meet the prerequisites. This ability replaces the investigator's poison resistance and poison immunity.