Armor Master (Legendary Fighter Archetype)

Deflective Shield (Ex)
At 2nd level, an armor master specializes in using his shield to deflect attacks. He gains a +1 bonus to his touch AC, and this bonus increases for every four levels beyond 2nd (to a maximum of +6 at 20th level); however, this bonus cannot exceed the sum of the armor and enhancement bonus to AC provided by the shield that the armor master is currently carrying.

This ability replaces determination.

Active Defense (Ex)
At 5th level, an armor master gains DR 1/— when wearing light armor, DR 2/— when wearing medium armor, and DR 3/— when wearing heavy armor. Each of these DRs increase by 1 for every 4 levels beyond 5th level. This damage reduction stacks with that provided by armor and fighter class features, but not with other forms of damage reduction. This damage reduction does not apply if the armor master is stunned, unconscious, or helpless.

This ability replaces the advanced weapon training options gained at 5th level and 13th level.

Fortification (Ex)
At 9th level, an armor master can use his armor to protect critical areas from injury. He treats any armor he wears as if it had the light fortification special ability. At 13th level, he treats any armor he wears as if it had the moderate fortification special ability, and at 17th level treats it as if it had the heavy fortification special ability. This fortification does not stack in any way with armor that has these special abilities. In these cases the armor master takes the better of the two fortifications.

This ability replaces the advanced weapon training options gained at 9th level and 17th level.

Indestructible (Ex)
At 20th level, an armor master gains complete immunity to critical hits and sneak attacks while he is wearing armor. In addition, unless his armor has the fragile armor quality, it cannot be sundered while he is wearing it.

This ability replaces weapon mastery.