As mainly a solo player, this card was a true blessing while I was playing the Steward's Fear. You can use your cheap allies to chop some of those nasty bandits in the staging area before they get to engage you. I especially refer to the Zealous Traitors who can wipe your entire board in a single engagement. The Outland allies are perfect for that card since they are very cheap and also quite potent when they flood the board. One other thing, it's a very thematic card if you include it in a Merry, Pippin, Treebeard deck with a lot of ents. Eat these stones, Saruman!

There doesn't seem to be much love for Second Breakfast, I overlooked the card originally because I'm almost entirely a lore player but after looking for answers to Druadan Forest I found I really like the card. I think it's amazing in the scenario for cycling a specific attachment like Thrór's Key. In a four player game where you have one or two people mostly responsible dealing with the enemies we've gotten a lot of use out of attachments like Cram and Miruvor. One of the complaints is that you have to pay for the card after returning it to your hand but these readying cards are often free. Another free attachment that our spirit player gets a lot of use out of it is Good Meal, this card is especially useful in Druadan Forest for playing events after all your resources have been stolen but also allows them to play cards like The Galadhrim's Greeting for one resource. Chump blocking, which is pretty much discarding a card and paying a resource, is kinda the same thing as Cram or Miruvor except it would allow you to get value from Second Breakfast.

Cram and Miruvor really shine early game when you're trying to clean out the enemies from setup and haven't developed the board yet, having your heroes who if they were allies would cost 3+ resources get a second action is huge.

I really like Expert Treasure-hunter, I can see it discarding an important attachment if you're looking for allies. It can also kinda cancel the drawback of Daeron's Runes and all the other cards with a discard effect.

I think Campfire Tales is usually a better version of it unless you need something like Thrór's Key for the scenario. I can definitely see Second Breakfast adding 3-4 cards to the player's hands consistently for one resource and it doesn't get much better than that.

Traps are single use attachments and I'm sure there are more one use attachments later on like Ranger Provisions, Elf-stone and Secret Vigil that make Second Breakfast even better. There is no shortage of great one use attachments or ways that you'll be forced to discard cards you'd prefer not to, if you feel the need to draw additional cards consider this one.

5
I love it when people stand up for corner case cards. Good job! —
I'm surprised anyone thinks this card is corner case. It's a fantastic card. Any kind of recurring is powerful....especially with the prevalence of attachment hate shadow effects and even better with single use attachments. —

I honestly don't care if this card got errata'd. My original card doesn't have "(limit once per phase)," so unless FFG gives me a free replacement Boromir card, whatever's written on the card stands.

Not seeing how this qualifies as a review... —

I don't play with this card much any more, but when The Black Riders first came out I used it frequently. It can be a game changer if circumstances are perfect, but it requires some careful planning and a little bit of luck. Imagine dropping an ally Beorn, Glorfindel, or Gildor for free!

I mostly play multiplayer now so I don't play this very much because it becomes difficult to make sure the Elf-Stone triggers during the correct players turn and that the player still has a high cost ally in his hand.