Notable for cancelling the entire text of a companion, disabling keywords, special abilities and triggered effects. Treachery can cripple characters such as Madril, DoO; Gandalf, PG and Grimbeorn. It is however, an expensive card that only works with Grima. It synergises with Grima, SoaM, who can also cancel special abilities with his own text. Treachery also works well with versions of Grima, as either or both of these cards can be recalled via Fleet of Corsair Ships. Treachery can however be splashed with any Grima, and can help Uruk decks using Wormtongue and/or Saruman's Power to get around nasty Fellowship abilities that would otherwise wreak havoc.

• Game-text dependent characters (Madril, DoO; Gandalf, PG; Denethor, LRS and Grimbeorn)

• Choke
• Minion hate such as A New Light or Shadowplay + Unheeded
• Event hate such as Wise Guide

• Treachery cancels all game text in a similar fashion to Star-Glass. Its wording is different however, and it reads rather strangely.

• Servant of Another Master has a very similar ability.
• Treachery is similar to, but significantly stronger than, Haunting Her Steps.