my wife and i are replaying through the game in progression mode and eleanor has been brought to almost every scenario up to the 4th cycle (the exception being combat-heavy ones that don't have must-negate treacheries like seventh level and watcher in the water)

The card that helps Galadriel to "indirectly quest" thanks to other characters. Notice that her total willpower is accounted, so she will like willpower boosts (Silver Circlet...) to improve the Nenya effect. Perfect target for the Grey Wanderer contract with Galadriel as hero.

Ghân-buri-Ghân’s ability is pretty decent, but it gets good while it’s paired up with Ose-bori-Ose’s ability. Ose’s ability says that once you play a attachment, (and it’s not on a character,) then your threat is treated as if it were 20, making it similar to Vanish from Sight. Anyway, back to Ghân. I’ve noticed that there aren’t many cards that bring locations into play, other than Dunedain Pathfinder. Not having very locations in play can be annoying if you have cards like Northern Tracker and Lórien Guide. Ghan-buri-Ghan changes all this. He can bring locations into play at his leisure, making sure that the Scouts have plenty to explore. Sure, having locations can be a problem, especially towards winning the game, but locations in play is half the reason that there are Scouts, and now Woses. What fun is having Scouts and Woses when there’s no locations? Our Scouts will be thanking Ghân-buri-Ghân before long! Another benefit from Ghan is his ability to shuffle the deck. If you’re scrying the encounter deck, and you see a nasty card, you can use his ability to shuffle that card in the deck, where it likely won’t be seen for a while. I know you could do the same thing with The End Comes, but with Ghan you’re not putting everything in the discard pile back into the deck. In fact, he gives you a free attachment!

P.S. If you’re doing a Scout + Wose deck, don’t explore too many locations in the staging area, the Woses need them to be active locations!

every hero is powerful when they have steward of gondor and 20 attachments, the problem is being able to get there. elrohir and elladan put you at 20 starting threat and provide virtually no questing power (since you can only ready them during combat), so now you have to choose between a spirit hero on your third slot to be able to quest in the early game, or a lore hero to be able to draw steward of gondor.

not to mention that their abilities are often unnecessary in single player (since there aren't that many enemies coming out each round) and the lack of sentinel/ranged makes them awkward to use in multiplayer, unless you intentionally raise your threat to "taunt" enemies to yourself (while the other players stay below the threshold)

and there's also the fact that their early game stats aren't particularly high either... 3 defense without shadow cancelation is just not enough for a lot of scenarios (i've beregonds being one-shot more times than i cared to count lol)

idk why paying a resource to ready someone was such a common effect in leadership (elrohir, gimli, and now frodo) but there are enough ways to ready heroes that this kind of ability often ends up being more expensive than it's worth. a simple cram can do it for free, and unexpected courage can do it forever for 1 extra resource. there's also the fact that frodo can only ready them for questing, which severely limits his potential

he is able to ready allies as well, but there are very few of them with more than 1 important stat anyway, and many of those already have other ways to ready or quest without exhausting. the threat reduction is neat, but very inefficient for its cost.

so IMO the main reason to use frodo is as a substitute for sam in a hobbit secrecy deck, since he makes it easier to stay under 20 threat and he also lets you play the spirit sam ally, which has a very efficient statline and useful ability