Well, here you go, the attachment version of Stand and Fight, your possibity of playing Steward of Gondor without having any Leadership heroes at all or being forced to play a Song of Kings, works really well with the standard Spirit deck/hand milling. Obviously this can also be used to equip powerful tactic items like Citadel Plate in mono-Spirit which opens quite some new possibilities for Spirit.
Reforged
Action: Choose an Item attachment with a printed cost of X in any player's discard pile and play that attachment for no cost. (The chosen attachment can belong to any sphere of influence.)
The Fate of Wilderland #153. Spirit.
One additional benefit of this card that I've recently discovered is that it allows for strategically playing attachments on locations after the staging step of the quest phase. It can be quite powerful to be able to drop Elf-stone on the active location once you already know that you will be clearing it. Explorer's Almanac is another fun option, as you can choose a second location to clear based on how well you quested. And if you are running an Erestor discard theme (or Dwarf mining discard, etc.), you can store your location attachments in the discard pile until you need them :).
One of my favourite events got an errata in the Revised printing of Ered Mithrin. Now it states "choose an ITEM attachment" - so no more out of sphere Steward of Gondor. This significantly lowers the usuability of this card, but I still think it's awesome in the right deck.