Force 2 adjacent enemies to Duel each other.
- Note: For accurate card stats, see infobox to the right; the one below is for illustrative purposes only.
- Gwent Update: Feb 9, 2018 Patch: Ability rework; Force 2 adjacent enemies to duel each other.
- Gwent Update: Aug 29, 2017 Patch: Ability rework; Move a Bronze Spying Enemy that has 10 or less Power to the opposite row. Added Tactic Tag.
- Gwent Update: May 24, 2017 Patch: Ability rework; Play the bottom card from your opponent's Deck.
- Gwent Update: Feb 20, 2017 Patch: Treason now adds +8 to a opposing spying non-Gold unit.; Fixed a rare issue with using Treason on a damaged Cantarella: the card will be moved to the graveyard correctly while having at most 6 strength.
- Gwent Update: Feb 6, 2017 Patch: Added.