I was wondering if the EoTG power Portent of Warding lasts for more than just the turn you use it (if it continues during your opponents phase). It doesnt say that it does, so I'm guessing not, but it doesn't seem very potent otherwise. It gives you a ward save from ranged attacks, so it would only be helpful against stand and shoot reactions and a small handful of random things that could happen (from what I can tell).
Yes it does last through the enemy turn. Thats the only time you would get shot by ranged attacks. The abilities (excluding Burning Alignment) last until you change the effect (on your turn), or the Priest/Stegadon Dies... So I can use the Portent of Warding, and every turn (his and mine) I'll have the ward save, Until at the start of one of my turns, I decide to change it to "blank".