Event

Paradox. Blessed. Cursed.

Cost: 0. XP: 1.

Survivor

Fast. Play when a chaos token with a symbol is revealed during a skill test at your location (before resolving its effects).

You or the performing investigator may either commit a card to this skill test, or return a card they committed to this test to their hand.

Adam S. Doyle
Devil Reef #160.
Butterfly Effect

Event

Spell. Paradox.

Cost: 0.

Mystic

Fast. Play when an encounter card or an enemy attack would cause you to do one of the following (choose one): Discard cards from hand, lose resources, lose actions, take damage, or take horror.

You ignore that aspect of the effect. (Each other aspect resolves normally.)

Ilich Henriquez
The Circle Undone #32.
Deny Existence

Event

Spell. Paradox.

Cost: 0. XP: 5.

Mystic

Fast. Play when an encounter card or enemy attack would cause you to do one of the following (choose one): Discard cards from hand, lose resources, lose actions, take damage, or take horror.

You ignore that aspect of the effect. Then, perform the opposite of that aspect (draw cards, gain resources, gain additional actions, heal damage, or heal horror, respectively).

Ilich Henriquez
In the Clutches of Chaos #280.
Deny Existence

Event

Insight. Paradox.

Cost: 1. XP: 1.

Seeker

Parley. Choose a non-Elite enemy at your location and test or (8). This test gets -1 difficulty for each other card in your hand. If you succeed, automatically evade the chosen enemy and attach Existential Riddle to it.

Attached enemy gains aloof.

Adam Doyle
The Scarlet Keys Investigator Expansion #52.
Existential Riddle

Event. Basic Weakness

Paradox.

Cost: 0.

Neutral

investigator only.

As an additional cost to play Quantum Paradox, you must choose and discard 4 other cards from your hand.

Forced - If Quantum Paradox is in your hand at the end of your turn: Reveal it and take 1 horror.

Bryce Cook
The Scarlet Keys Investigator Expansion #125.
Quantum Paradox

Event

Spell. Paradox.

Cost: 1. XP: 2.

Mystic

Fast. Play immediately after an investigator at your location finishes resolving an action during his or her turn.

Undo that action (return the game state to exactly the way it was before that action was performed, except for the playing of Time Warp and its costs).

Stephen Somers
Dim Carcosa #311.
Time Warp