A common fighting style amongst kobolds, swarm fighting has been adapted by elflings (particularly pixielings) as a means of training their warriors for inevitable battle with the Chaos. While the standard features of this archetype work for both kobolds and elflings, pixielings developed some alternative strategies since they already must stand within another creature’s space to fight it.
A swarm fighter is proficient with all simple and martial weapons. She is proficient with light and medium armor, but not with shields.
The swarm fighter gains Mobility as a bonus feat, even if she does not meet the prerequisites.
This replaces the bonus feat a fighter gains at first level, and can’t be replaced at a later level.
The swarm fighter only gains bonus combat feats at 2nd, 10th, 12th, and 18th level.
These are gained as with the fighter’s normal bonus feats class feature (but less frequently).
At 2nd level, when a swarm fighter succeeds on a Will save against a mind-affecting effect, allies that can see and hear him gain a +1 bonus to save against the same effect. This bonus increases to +2 at 10th level, and +3 at 18th level. At 6th level, the swarm fighter gains a +2 bonus to Will saves. This bonus increases to +4 at 14th level.
This ability replaces bravery.
At 4th level and every 4 levels thereafter, the swarm fighter gains a bonus Teamwork Feat.
At 5th level, when a larger ally within 5 feet of a swarm fighter moves, the swarm fighter can also move up to the same distance, but only along the exact same path as her ally. She still draws attacks of opportunity as normal for this movement.
This ability replaces weapon training 1.
This ability replaces weapon training 2.
At 13th level, the swarm fighter gains Step Up as a bonus feat. A creature sharing a square with the swarm fighter is considered adjacent for the purposes of this feat. At 17th level, the swarm fighter gains Following Step as a bonus feat.
These abilities replace weapon training 3 and 4.
At 20th level, any attacks made against creatures with which the swarm fighter shares a space automatically confirm all critical threats.
This ability replaces weapon mastery.
The Book of Many Things, © 2018,Samurai Sheepdog; author Kevin Glusing.