These warriors use siege weapons they bind themselves to, giving power to the siege weapon and giving them greater control over its usage.
Siege Bond
Arcane Arbalests form a bond with a Siege Weapon, and learn to use siege weapons properly. They gain proficiency with Siege weapons, and receive one of the following free: Ballista, Light Catapult, or a Ram. In addition to this, the Arcane Arbalest can summon the siege weapon they’re bound to as a standard action. If the area would be too small for the siege weapon to fit into (such as a tight room), the siege weapon shrinks to accommodate the room’s size, but reduces the damage it deals by -2k2 and reduces its Penetration by 3. Bonding with a new siege weapon takes 8 hours.
This replaces the Martial Talent gained at 1st level.
Automatic Crew
The Arcane Arbalest can use their magical talent to reduce the amount of crew needed for their bonded siege weapon. This starts as a reduction of 1, and the reduction increases by 1 for every 4 levels after 2nd. This cannot reduce the minimum crew requirement below 1, however it reduces the time it takes to reload the siege weapon for each crew that’d be replaced (for example if this is applied to a Ballista, it reduces the reload action to a move action the first time, a swift action the second time, and finally a free action the third time).
This replaces Unshakable.