While Accursed Battlefield is the active location, each quest card in play gains the battle keyword.

Shadow: Attacking enemy gets +1 (+3 instead if the defending player's threat is higher than the attacking enemy's engagement cost).

While Fortress Walls is the active location, for each resource spent by a player, raise that player's threat by 1.

Shadow: If your threat is 40 or higher, attacking enemy makes an additional attack against you after this one.

While Daechanar is in play, progress cannot be placed on Altar of Midwinter.

Forced: At the end of the staging step, the first player must either reveal 1 additional card from the encounter deck, or reanimate the top card of his deck.

Forced: When Sinister Dungeon is explored, the first player reanimates a random card from his hand and deals Sinister Dungeon to it facedown as a shadow card.

Shadow: Discard the top 2 cards of the encounter deck. Resolve the "when revealed" effects of each Sorcery card discarded by this effect.

Forced: At the end of the round, discard the top card of each player's deck. Each player must reanimate each ally discarded by this effect.

Travel: Deal 1 shadow card to each Undead enemy in play to travel here.

He could see nothing but the dim flame of the torches; but if the company halted, there seemed and endless whisper of voices all about him...
–The Return of the King

While Dark Halls is in the staging area, each Reanimated Dead gets +1 and +1 .

Shadow: If there is a copy of the defending character in your discard pile, reanimate it and deal it 1 shadow card.

Unholy Crypt gets +1 for each Reanimated Dead in play.

Shadow: if this attack destroys a character, reanimate that character and deal it 1 shadow card.

While Stronghold Tower is in the staging area, shadow effects cannot be canceled.

Travel: Each player must deal 2 damage to a character he controls to travel here.

Forced: After Gates of Carn D–m is explored, deal it as a shadow card to the enemy in the staging area with the lowest engagement cost.

Shadow: Attacking enemy gets +1 and cannot take damage this round.

Progress cannot be placed on Inner Sanctum while it is in the staging area.

Travel: Discard the top 3 cards of the encounter deck. Resolve the 'when revealed' effects of each Sorcery card discarded by this effect.

While Cursed Halls is in the staging area, Sorcery attachments are immune to player card effects.

Shadow: Until the end of the phase, attacking enemy gets +1 and +1 for each Reanimated Dead engaged with you.