You are playing Nightmare mode.

Each engaged Guardian enemy contributes its to the total in the staging area.

While the Trial of Intuition is the current trial, each Guardian enemy cannot be damaged, and each Barrow location cannot be the active location and is immune to player card effects.

"I am not ready for such a trial, if indeed I shall ever be so..."
–Gandalf, The Two Towers

Begin with the standard quest deck and encounter deck for The Three Trials scenario.

Remove the following cards, in the specified quantities, from the standard encounter deck:

3x Spirit of the Wild

3x Grim Foothills

1x Tangled Woods

3x Turned Around

Then, shuffle the encounter cards in this Nightmare Deck into the remainder of the standard The Three Trials encounter deck.

Finally, flip this setup card over and place it next to the quest deck. Its effects remain active throughout the game, which is now ready to begin.