Nightfall said:
Wik,
Is that feat a general feat or something else?
General feat. (Along with the feat that allows you to summon your Pokemount as a swift action).
The Domain feats are superb. Basic idea is that if your god grants the domain, you can take the domain feat (you don't need to be a cleric or anything - there's no other pre-req).
Most of the domain feats activate as a swift action and last 1 minute (e.g. 1 combat), and can be used 1/day. Characters with Turn Undead can spend turn undead uses to get extra uses out of the Domain feats; the number of Turn attempts used depends on the feat.
So...
Air Domain: gives you an AC bonus (dependent on your level) and a miss chance vs. ranged weapons
Strength domain: your weapons count as adamantine, you gain a good slam attack
Healing domain: you (or a friend) gain Fast Healing for 1 minute (value depends on level)
The prestige classes are very interesting: they decided to create a bunch of organisations, then link most of the PrC into those orgs. All the orgs use the affiliation rules from PHB2.
Also: Affliliations for all the gods in the PHB, plus affiliations for every *domain* in the PHB, giving you the basics for creating new religious organisations.
Cheers!