General
Achievement | Alignment | Armor Mastery | Betrayal | Blood Hex | Called Shot | Combat | Combination | Conduit | Coven | Critical | Damnation | Esoteric | Faction | Familiar | Gathlain Court Title | Grit | Hero Point | Item Creation | Item Mastery | Meditation | Metamagic | Origin | Panache | Performance | Shield Mastery | Stare | Story | Targeting | Teamwork | Trick | Weapon Mastery | Words of Power


Siege Engineer (Combat)

Source Ultimate Combat pg. 118
You are proficient with all siege weaponry.

Prerequisites: Knowledge (engineering) 5 ranks or Profession (siege engineer) 5 ranks, proficiency with one siege engine.

Benefit: You are considered to be proficient with all siege weapons. Also, when you are crew lead for a siege engine, you do not generate mishaps on the roll of a natural 1.

Normal: Each siege engine is an exotic weapon.

Combat Trick

Source Pathfinder Unchained pg. 131
As long as you have at least 1 stamina point in your stamina pool, you gain a +1 bonus on attack rolls with all siege weapons.