Members of the Order

Members of the Order were raised in and have lived most of their lives in the churches and families of the Order of the Invincible, and even if they don't go on to become an embodiment of the Order, they retain the ability to fight evil and undead

Prerequisites: Must worship The Invincible, have at least one parent who is a worshiper of The Invincible and a member of the Order, and must be LG in alignment, must be trained in the Religion skill, must be proficient with the longsword.

3rd level: Members of the Order gain Mounted Combat as a bonus feat and a +2 cultural bonus to Religion.

6th level: Members of the Order gain the ability to use the paladin ability Lay on Hands as an encounter power. The restriction on number of times per day per point of Wisdom modifier still applies. If they already have the Lay on Hands ability from being a paladin or gaining it from another class, the individual instead gets to use the ability two additional times per day, as if their Wisdom modifier was 2 points higher. The individual also gains one additional healing surge per day.

9th level: Members of the Order gain the ability to use one Paladin encounter attack power of 3rd level or lower as a daily power. At 19th level, this power can be swapped for an encounter attack power of 13th level or lower, and at 29th level, this power can be swapped for an encounter attack power of 23rd level or lower.

This culture is still undeveloped for the APGS. The above rules  to 4th edition and give a pretty good idea of what the rules for the culture will be like.