I've gone back to the core set, playing progression style. I've done this 2-handed solo in the past. Now I'm trying it 1-handed solo (although I'll probably make an exception for Escape from Dol Guldur). I've built 2 decks, which I'll play one at a time against each quest. One deck is Leadership/Lore and the other is Spirit/Tactics.
I managed to beat Passage Through Mirkwood with each deck, no major problems. It took me a couple times to beat Journey Down the Anduin with Leadership/Lore, but, thanks to Sneak Attack and Forest Snare, I managed to beat it twice.
I'm now trying to beat Journey Down the Anduin with the Spirit/Tactics and have failed 10 times in a row! My starting threat is 27 (Eowyn, Eleanor, Gimli) so I have 3 turns before the Hill Troll starts swinging. Feints and Gandalf help, as does Gimli with Unexpected Courage (and, ideally, the Citadel Plate) but things never seem to come together for me, so I end up either threating out or losing heroes.
Part of me wants to "try, try again" until I figure out the "puzzle" of beating Journey Down the Anduin with a Spirit/Tactics deck. In theory, it's doable. So I should be able to do it. Right?
Well, the other part of me wonders if Spirit/Tactics (with core set cards) is a fundamentally "difficult" combination for this particular quest. If that's the case, then is it better to "cut my losses" and move on to the next quest, so that I don't get frustrated and lose my momentum?
And that ambivalence makes me wonder: for those of you who like to beat a quest with multiple decks before progressing to the next one, at what point do you "call it a day" with a particular set of spheres? When do you decide that a beating a quest with a particular set of spheres is not just a matter of deck tuning and persevering through bad luck, but is instead a fundamentally more difficult exercise than with your other decks? And how difficult does it have to seem in order for you feel that sinking more and more hours into it is just not worth it?
In other words:
1) How and when do you feel you get an accurate gauge on how difficult a quest is with a particular sphere set?
2) At what point do you decide it is "too difficult" and decide to give up?
3) When you do decide to "give up", do you then switch to easy or sleazy mode, or do you simply move on to the next quest?