Traits
Relic Hunter [+1 trait bonus on Appraise / Knowledge (history) on buildings more than 1,000 years and objects found in them. If magical, +1 trait bonus on Spellcraft / Use Magical Device regarding it.]
Two-World Magic [get a 0 level spell from another class]
Feats
Fast Learner [extra favored class bonus each level]
Improvisation [+2 bonus on all skills with no ranks / can use all skills untrained]
Abilities
Archaeologist’s Luck (Ex) [As a swift action, +1 luck bonus on attack rolls, saving throws, skill checks, and weapon damage rolls. He can use this ability for a number of rounds per day equal to 4 + his Charisma modifier. Maintaining this bonus is a free action, but it ends immediately if the archaeologist is killed, paralyzed, stunned, knocked unconscious, or otherwise prevented from taking a free action to maintain it each round. This bonus increases to +2 at 5th level, +3 at 11th level, and +4 at 17th level.]
Bardic Knowledge (Ex) [A bard adds half his class level (minimum 1) to all Knowledge skill checks and may make all Knowledge skill checks untrained.]
Cantrips (Sp)
Clever Explorer (Ex) [2nd level--1/2 class level bonus on Disable Device / Perception. Disable intricate and complex devices in half the time (minimum 1 round) and open a lock as a standard action. 6th level--can take 10 on Disable Device checks, even if distracted or endangered, and can disarm magical traps.]
Uncanny Dodge (Ex) [2nd level--gains uncanny dodge, as the rogue class feature]
Trap Sense (Ex) [3rd level--gains trap sense +1, as the rogue class feature of the same name. This bonus improves by +1 for every three levels gained after 3rd, to a maximum of +6 at 18th level.]
Rogue Talents [4th level--gains a rogue talent. He gains an additional rogue talent for every four levels of archaeologist gained after 4th level. Otherwise, this works as the rogue’s rogue talent ability.]
Lore Master (Ex) [5th level--can take 10 on any Knowledge skill check with ranks. A bard can choose not to take 10 and can instead roll normally. In addition, once per day, take 20 on any Knowledge skill check as a standard action. He can use this ability one additional time per day at 11th and 17th level.]
Evasion (Ex) [6th level--gain evasion]
Jack of All Trades (Ex) [10th level--use any skill untrained. 16th level--all skills are class skills. 19th level--take 10 on any skill check, even if it is not normally allowed.]
Advanced Talent [12th level--Advanced Rogue Talents]