Setup: Attach to a Ranger hero.
Response: After attached hero is declared as a defender against a non-unique enemy, exhaust Forewarned to discard 1 shadow card from that enemy.
"Faint and far are the feet of our enemies."
–Aragorn, The Two Towers
Setup: Attach to a Noble hero.
Response: After attached hero quests successfully, exhaust Leader of Men to add 1 resource to attached hero's pool.
"Take this, dear lord!" said a clear voice. "It was ever at your service."
–The Two Towers
Setup: Attach to a hero.
Attached hero gets +1 
+1 
+1 
and cannot have treachery card attachments.
"Beyond all hope you return to us in our need!"
–Aragorn, The Two Towers
Attach to
Aragorn.
Quest Action: Exhaust Aragorn and Palantír of Orthanc to discard the top card of the encounter deck. If Aragorn's is greater than the discarded card's
you may add Palantír of Orthanc to the victory display and remove it from the campaign pool to choose a player. That player reveals 1 fewer encounter card this phase (to a minimum of 0).
Attach to a Gondor or Hobbit hero. Restricted.
Response: After attached hero exhausts to defend an attack from an enemy with engagement cost higher than your threat, exhaust Staff of Lebethron to discard a shadow card from that enemy.
"They are made of the fair tree lebethron, beloved of the woodwrights of Gondor..." –Faramir, The Two Towers
Play Ambush into the staging area unattached. If unattached, attach Ambush to the next eligible enemy that enters the staging area.
Combat Action: The engaged player discards Ambush to declare an attack against the attached enemy.
"But we have a new errand on this journey: we come to ambush the Men of Harad." –Mablung, The Two Towers
Attach to a Rohan hero. Restricted.
If attached hero is Théoden, Snowmane loses the restricted keyword.
Response: After attached hero quests successfully, ready attached hero.
Suddenly the king cried to Snowmane and the horse sprang away. –The Return of the King
Attach to a Rohan hero. Restricted.
Response: After attached hero is declared as a defender, exhaust Golden Shield to add attached hero's to its for this attack.
His golden shield was uncovered, and lo! it shone like an image of the Sun...
–The Return of the King
Attach to Gondor hero. Restricted.
Response: Spend X resources from attached hero's pool to cancel X damage just dealt to attached hero.
This was the livery of the heirs of Elendil, and none wore it now in all Gondor, save the Guards of the Citadel...
–The Return of the King
Attach to a Dúnedain hero.
If the attached hero is Aragorn, he gains a
icon.
Response: After you optionally engage an enemy, exhaust Roheryn and attached hero to declare attached hero as an attacker (and resolve its attack) against that eneny.
"Aragorn's own horse that they had brought from the North; Roheryn was his name."
–The Return of the King
Attach to Aragorn.
While Aragorn is questing, each other questing character you control gets +1
While Aragorn is attacking, each other attacking character you control gets +1
Seven stars were about it, and a high crown above it, the signs of Elendil that no lord had borne for years beyond count.
–The Return of the King
Setup: Attach to a hero.
Attached hero gains the Rohan trait.
Attached hero gets +1 while attacking with another Rohan character.
"Rise now, Meriadoc, esquire of Rohan of the household of Meduseld!"
–Théoden, The Return of the King
Setup: Attach to a hero.
Attached hero gains the Gondor trait.
Attached hero gets +1 while commited to the quest with another Gondor character.
"Here do I swear fealty and service to Gondor, and to the Lord and Steward of the realm..."
–Pippin, The Return of the King
Attach to a Rohan hero. Restricted.
Response: After attached hero is declared as an attacker, exhaust Gúthwinë to give that hero +2 for this attack. If this attack destroys an enemy, return a Rohan ally from your discard pile to your hand.
“Gúthwinë!” cried Éomer. “Gúthwinë for the Mark!”
–The Two Towers
Attach to a Hobbit hero. Limit 2 copies of Friend of Friends in play.
While another hero has Friend of Friends attached, attached hero gets +1 +1 +1 and +1 hit point.
"Come, Mr. Frodo!" he cried, "I can't carry it for you, but I can carry you and it as well"
–Sam Gamgee, The Return of the King
Attach to the Ring-bearer. Limit 1 per hero.
While an Orc is making an enagement check with you, it gets +5 engagement cost.
Response: After an Orc engages you, discard Orc Disguise. Until the end of the round, that enemy cannot attack you.
Setup: The first player attaches Old Bogey-stories to a hero in play.
Action: Add Old Bogey-stories to the victory display to shuffle your hand of at least 6 cards into your deck. Then, draw 6 cards.
"If you mean the old bogey–stories Fatty's nurses used to tell him, about goblins and wolves and things of that sort, I should say no." –Merry, The Fellowship of the Ring