I was reading through some of the past news articles and took another look at Distant Stars, the Lore event that was spoiled in the Escape from Mount Gram article. It looks to be uber powerful. Maybe I'm reading it wrong, but it looks like it could break Rhosgobel and smash some other quests pretty hard, too.
As far as I understand it, its text box says: “Exhaust a Ranger or Scout [hero/character] to discard a non-unique active location. Then, search the encounter deck and discard pile for a non-unique location and make it the active location.”
Here is a Top 5 list of quests for Distant Stars:
Top 5 Quests for Distant Stars
#1: A Journey to Rhosgobel
By using Distant Stars to bring copies of Forest Grove out, you can bring Athelas out quickly. Simple but extremely powerful.
#2: The Three Trials
Do you hate lots of shadow cards and threat raising? Me too. Distant Stars can get rid of the pesky, but non-unique, Barrow locations (except on Trial of Strength).
#3: We Must Away, Ere Break of Day
Sadly, the Troll Cave is immune to player card effects, but the Troll Camp, which is almost necessary to beat the quest, is not. Many players wait around for this location to show up before facing the trolls, but with Distant Stars, the wait is over.
#4: Conflict at the Carrock
Although you can’t use Distant Stars to get Grimbeorn by use of the Bee Pastures, you can bring Oak-wood Grove out.
#5: Flight from Moria
I almost didn’t mention this one, but for the sake of completeness (and making the list a Top 5), I did. There’s one card in particular that warrants this card’s inclusion, similar to the way Sleeping Sentry warrants A Test of Will’s inclusion, and that card is Dreadful Gap. All of us who have played this quest multiple times know that having 3 victory points and 10-20 quest points shoved in front of us isn’t an appealing prospect. If you’re using Abandoned Tools on the last quest card, Dreadful Gap will act as a buffer until you can clear it, no matter how hard you’re trying to not travel to any locations. Trying to clear it is a nightmare. Once it is cleared, The Nameless Fear now has +3 threat. Distant Stars can simply discard this location and bring Plundered Armoury out.
Other cards Distant Stars would be good against: Gladden Marshlands, Impassable Bog, Eilenach, etc. The List Goes Ever On.
One potential drawback might be the exhaustion of a Ranger or Scout. If the card allows you to use an ally, Snowbourn Scout just found a new purpose in life. If you have to use a hero, the Elladan/Elrohir brothers are perfect candidates. Just pay a resource to ready one of them after attacking/defending and you can use Distant Stars in the action window at the end of the combat phase.