Guild Wars 2

Is there a Carrion version? You know, Power/Vitality/Condition?

The closest I can find are Relena & Vassar’s Rings, which are Toughness/Vitality/Condition.

Is there a Precision, Vitality, and Toughness version?

It’s fairly safe to assume these are all the combinations you can get at the moment:

http://dulfy.net/2012/11/17/gw2-ascended-gear-and-infusion-recipes/

Ascended items are used only for protection inside the FotM or in general?

The Agony Resistance on Ascended items is only needed in FotM right now and nowhere else. The other stats, of course, are good anywhere.