As Pithing Spyglass enters, name a keyword ability or ability word. All cards in all zones lose that keyword ability or ability word and all text tied to that ability.
2019-11-12
An ability word appears in italics before an ability and has no inherent rules meaning. That ability following the ability word is the "text tied to that ability," not any other abilities the card may have that relate to it (such as those linked to an imprint ability).
2019-11-12
To choose a keyword ability, you may select any keyword ability (such as flying, hexproof, or legacy) but not a keyword action (such as destroy, populate, or scry).