- Note: For accurate card stats, see infobox to the right; the one below is for illustrative purposes only.
- See this subject on The Witcher wiki: Quen sign
- Gwent Update: Dec 19, 2017 Patch: Removed.
- Gwent Update: Aug 29, 2017 Patch: Added Spell tag.
- Gwent Update: May 24, 2017 Patch: Will also boost a unit it shields by 2. Now Common (was Rare).
- Gwent Update: March 23, 2017 Patch: Quen Sign now protects from changes to base strength.
- Gwent Update: Dec 19, 2016 Patch: Added.