You may give Greyflood Wanderer doomed 2 when you play it from your hand. If you do, it gains:

Response: After you play Greyflood Wanderer, place 1 progress token on each location in play.

...others had gone west, and with the help of Aragorn and the Rangers had searched the lands far down the Greyflood... –The Fellowship of the Ring

Secrecy 2.

Response: After Celduin Traveler enters play, look at the top card of the encounter deck. If it is a location, you may discard it.

In two days going they rowed right up the Long Lake and passed out into the River Running... –The Hobbit

Galadriel cannot quest, attack, or defend. Allies you control do not exhaust to commit to the quest during the round they enter play.

Action: Exhaust Galadriel to choose a player. That player reduces his threat by 1 and draws 1 card. (Limit once per round.)

Response: After Galadriel’s Handmaiden enters play, choose a player. That player reduces his threat by 1.

Her maidens stood silent about her, and a while she looked upon her guests. –The Fellowship of the Ring

You must use resources from 3 different heroes' pools to pay for this card.

Action: Discard each shadow card from each enemy in play.

At that moment he caught a flash of white and silver coming from the North, like a small star down on the dusky fields. –The Return of the King

Warden of Annúminas gets +1 for each enemy engaged with you.

Rangers passed at times beyond the hills, but they were few and did not stay. –The Fellowship of the Ring

Forced: After the active location is explored, place Curious Brandybuck on the bottom of its owner's deck.

Response: After you travel to a location, put Curious Brandybuck into play from your hand, under any player's control.

Response: After Lindir enters play, if you have less than 3 cards in your hand, draw until you have 3 cards in your hand.

"To sheep other sheep no doubt appear different," laughed Lindir. "Or to shepherds. But Mortals have not been our study. We have other business."
–The Fellowship of the Ring

Action: Discard a card from your hand to add 1 resource to a Noldor's resource pool, or to Aragorn's resource pool. (Limit once per round.)

...the light of stars was in her bright eyes, grey as a cloudless night; yet queenly she looked, and thought and knowledge were in her glance, as of one who has known many things that the years bring.
–The Fellowship of the Ring

Attach to a unique ally belonging to any sphere of influence.

Attached character loses the ally card type and gains the hero card type.

"But why, lord, did you receive me as sword–thain, if not to stay by your side?"
–Merry, The Return of the King

Draw 1 additional card at the beginning of the resource phase.

Forced: After drawing cards at the beginning of the resource phase, choose and discard 1 of those cards.

Very tall he was, and his beard was long, and he was grey and old, save that his eyes were keen as stars...
–The Return of the King

Glorfindel can be played from your discard pile.

Action: Discard a card from your hand to ready Glorfindel. (Limit once per phase.)

"He is an Elf-lord of a house of princes."
–Gandalf, The Fellowship of the Ring

Reduce the cost to play Sam Gamgee by 2 if you control Frodo Baggins.

Response: After a player raises his threat, that player may spend 1 resource to ready Sam Gamgee. He gets +1 +1 and +1 until the end of the round. (Limit once per round.)

Response: After Rhovanion Outrider commits to the quest, place 1 progress on a location in the staging area. If that location is not explored by this effect, give Rhovanion Outrider +1 until the end of the phase.

Response: After you play Linhir Sea-captain from your hand, if you paid all of its resource cost from a single hero's resource pool, both that hero and Linhir Sea-captain do not exhaust to quest this round.

Action: Spend 1 resource to exhaust Súlien. Then, each location in the staging area gets -1 until the end of the phase. Any player may trigger this action.

Sentinel.

Response: When you play Erebor Guard from your hand, discard the top 2 cards of your deck to reduce its cost by 2.

...the fortress of the dwarves could not be taken by surprise. –The Hobbit

Sentinel.

Response: After Jubayr exhausts to defend an attack, discard 1 facedown shadow card from a non-unique enemy. (Limit once per phase.)

Forced: After this ally enters play, search the top 5 cards of the encounter deck for a non-unique location and add it to the staging area. If no location enters play by this effect, discard Dúnedain Pathfinder. Shuffle the encounter deck.

While a side quest is in the victory display, Rider of Rohan does not exaust to quest.

"Who are you, and what are you doing in this land?" said the Rider, using the Common Speech of the West...
–The Two Towers

Reduce the cost to play Item attachments on Descendant of Girion by 1.

–Glóin, The Fellowship of the Ring

Response: After you play Erebor Toymaker from your hand, reduce the cost of the next attachment played this phase by 2.

There were toys the like of which they had never seen before, all beautiful and some obviously magical.
–The Fellowship of the Ring

Ranged.

Response: After Derufin participates in an attack that destroys an enemy engaged with a player, discard Derufin to reduce the engaged player's threat by X, where X is the destroyed enemy's printed .

Response: After you play Kili from your hand during the planning phase, search your deck for Fili and put him into play under your control. Then, shuffle your deck.

"Let us join the throng!"
–The Hobbit

Sentinel.

While you control at least 5 Dwarf characters, lower the cost to play Dwalin by 2.

Response: After Bilbo Baggins enters play, search your deck for a Pipe attachment and add it to your hand. Shuffle your deck.

"Elves may thrive on speech alone, and Dwarves endure great weariness, but I am an old Hobbit, and I miss my meal at noon." –The Fellowship of the Ring

Combat Action: Ready Háma. He gets +3 until the end of the phase. At the end of the phase, discard Háma. (Limit once per round.)

"I am the Doorward of Théoden," he said. "Háma is my name." –The Two Towers

Response: After a Rohan ally you control is discarded from play, exhaust Gamling to return that ally to your hand.

"...we have a thousand fit to fight on foot," said Gamling, an old man, the leader of those that watched the Dike. –The Two Towers

While there is a hero in your discard pile, Prince Imrahil loses the ally card type and gains the hero card type.

"We must gather all of the strength that we can find.
–The Return of the King

While Elladan is in play, Elrohir gets +2

Response: After you optionally engage an Orc enemy, ready Elrohir.

"From the North we came with this purpose, and from Elrond our father we brought this very counsel."
–The Return of the King

Galadriel cannot quest, attack or defend. Allies you control do not exhaust to commit to the quest during the round they enter play.

Action: Exhaust Galadriel to choose a player. That player reduces his threat by 1 and draws 1 card. (Limit once per round.)

Action: Discard 1 card from your hand to give Éowyn +1 until the end of the phase. This effect may be triggered by each player once each round.

Action: Discard a card from your hand to add 1 resource to a Noldor hero's resource pool, or to Aragorn's resource pool. (Limit once per round.)