You are playing Nightmare mode.
"If simple folk are free from care and fear, simple they will be, and we must be secret to keep them so."
–Aragorn, The Fellowship of the Ring
Begin with the standard quest deck and encounter deck for the Intruders in Chetwood scenario.
Remove the following cards, in the specified quantities, from the standard encounter deck:
1x Angmar Orc
3x Angmar Marauder
2x Chetwood Forest
1x Outlying Homestead
2x Borders of Bree-land
1x Rugged Country
1x Shrouded Hills
3x Surprising Speed
2x Sudden Assault
Then, shuffle the encounter cards in this Nightmare Deck into the remainder of the standard Intruders in Chetwood encounter deck.
Finally, flip this setup card over and place it next to the quest deck. Its effect remains active throughout the game, which is now ready to begin.
4
4
5
2 
Forced: At the end of the round, if Orc Abductor is in the staging area, search the encounter deck, discard pile and victory display for Rescue Iârion and reveal it. Shuffle the encounter deck.
Shadow: Deal 1 damage to defending character.
5
3
5
1
Forced: After Soldier of Angmar attacks and destroys an ally, search the encounter deck, discard pile and victory display for Orc Ambush and reveal it. Shuffle the encounter deck.
Shadow: Attacking enemy gets +2
Forced: After progress is placed on Northern Chetwood (and it is still in play), search the encounter deck, discard pile and victory display for Lost in the Wilderness, and reveal it.
Shadow: Discard 1 card at random from your hand for each point of damage deal by this attack.
Forced: At the end of the round, if Greenway Path is in the staging area, search the encounter deck, discard pile and victory display for Shadow the War Party, and reveal it.
Shadow: Return attacking enemy to the staging area after this attack.
Travel: Search the encounter deck, discard pile and victory display for Protect the Bree-landers, and reveal it.
Shadow: Attacking enemy gets +1 if this attack destroys a character, raise your threat by 3.
When Revealed: Each player returns each enemy engaged with him to the staging area. Either search the encunter deck, discard pile and victory display for Orc Rearguard and reveal it, or each player must deal 4 damage to a character he controls. Shuffle the encounter deck.
When Revealed: Search the encounter deck, discard pile and victory display for a copy of Orc War Party and add it to the staging area. Shuffle the encounter deck. Either remove all progress from the main quest, or each Orc War Party in the staging area makes an immediate attack against the player with the highest threat.
Each copy of Orc War Party cannot be engaged, cannot be dealt damage and gets +2
When Revealed: Return each engaged Orc War Party to the staging area.
Every step brings the Orcs closer to Bree–land. If you can't find some way to delay the enemy, the war party will reach the village before you can stop them.
Forced: At the end of the quest phase, if no progress was placed on Protect the Bree-landers, place 1 resource on it. Then, raise each players threat by the number of resources on Protect the Bree-landers.
You are playing Nightmare mode.
Setup: Shuffle each copy of Captive Villager and Rearguard Ambusher into the Orc deck.
The players cannot win the game while a Captive Villager is guarded by an encounter card. If a Captive Villager leaves play, the players lose the game.
The land before them began to rise again, Away in the distance eastward they could not see a line of hills.
–The Fellowship of the Ring
Begin with the standard quest deck and encounter deck for The Weather Hills scenario.
Remove the following cards, in the specified quantities, from the standard encounter deck:
3x Cornered Orc
3x Sheltered Valley
1x Concealed Orc-camp
1x Angmar Marauder
2x Angmar Orc
3x Ruins of Arnor
2x Tragic Discovery
Then, shuffle the encounter cards in this Nightmare Deck into the remainder of the standard The Weather Hills encounter deck.
Finally, flip this setup card over and place it next to the quest deck. Its effect remains active throughout the game, which is now ready to begin.
0
1
2
Forced: After Captive Villager enters play, reveal the top card of the Orc deck and attach it to Captie Villager, guarding it.
While Captive Villager is free of encounters, the first player gains control of it and is considered to have +5 threat while making engagement checks.
4
2
4
Cannot be optionally engaged.
Forced: After Rearguard Ambusher engages you, exhaust each damaged character you control.
His broad flat face was swart, his eyes were like coals, and his tongue was red; he wielded a great spear.
–THe Fellowship of the Ring
5
3
5
Forced: After a character the engaged player controls is healed, Angmar Raider makes an immediate attack.
Shadow: Attacking enemy gets +2 until the end of the phase.
Progress cannot be placed on Weather-torn Valley while it is in the staging area.
While Weather-torn valley is active location, Weather cards cannot be canceled.
...suddenly a light came in the sky, and there was a noise of thunder.
–The Fellowship of the Ring
While Ruined Watch-tower is in the staging area, it gains:"Forced: When an Orc enemy is revealed, each player must deal 1 damage to a character he controls.
While Ruined Watch-tower is the active location, each enemy gets +3
When Revealed: Either remove 1 resource token from the Mission objective, or add 8 to the total in the staging area this phase.
Shadow: Either remove 1 resource token from the Mission objective, or attacking enemy gets +3
The weather makes the Orcs difficult to track. It requires all of your skill to read the signs in the rough terrain.
Each enemy gets +10 enagement cost and cannot be optionally engaged.
When Revealed: Reveal the top of card of the Orc deck (reveal the top 2 card instead if there are 3 or more players in the game).
You are playing Nightmare mode.
Each player's deck cannot include more than 50 total cards.
Setup: Each player searches the encounter deck for a copy of Cursed Dead and places it in the encounter discard pile. Shuffle the encounter deck.
"Men call it Deadmen's Dike, and they fear to tread there. For the folk of Arnor dwindled, and their foes devoured them..."
–Elrond, The Fellowship of the Ring
Begin with the standard quest deck and encounter deck for the Deadmen's Dike scenario.
Remove the following cards, in the specified quantities, from the standard encounter deck:
2x Fornost Square
3x Broken Battlements
2x Norbury Tombs
2x Restless Evil
Then, shuffle the encounter cards in this Nightmare Deck into the remainder of the standard Deadmen's Dike encounter deck.
Finally, flip this setup card over and place it next to the quest deck. Its effect remains active throughout the game, which is now ready to begin.
6
3
8
Cannot have attachments.
For each excess point of combat damage deal by Undead Horde (damage that is dealt beyond the remaining hit points of the character damaged by its attack) you must discard 1 card from the top of your deck.
3
1
2
When Revealed: Put each copy of Cursed Dead in the discard pile into play in the staging area.
Shadow: Attacking enemy gets +1 (+2 instead if there is a copy of the defending character in its owner's discard pile.
Action: Discard the top X of your deck to reduce Palace Ruins' by X until the end of the phase. Any player may trigger this action. (Limit once per phase.)
Shadow: Discard 1 card from the top of your deck for each Undead enemy engaged with you.
While Fornost Street is in the staging area, each other Fornost location gets +1
Travel: Return the topmost enemy in the encounter discard pile to the staging area.
Shadow: Each Undead enemy engaged with you gets +1 and +1 until the end of the phase.
While Decrepit City is the active location, 'when revealed' effects cannot be canceled.
Shadow: Either discard 3 cards from the top of your deck, or this attack is considered undefended.
When Revealed: Each player discards each card in his hand that has the same title as a card in his discard pile. If no cards are discarded by this effect, Curse of Angmar gains surge.
...the Dúnedain were now few and all the peoples of Eriador diminished. –The Return of the King
Battling the dead drains your spirit as well as your body.
When Revealed: Each player placed the top 8 cards fo his deck facedown under this quest.
Forced: When this quest is defeated, shuffle each card under this quest into its owner's deck.