- 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: Fiend
- Gwent Update: Dec 19, 2017 Patch: Fiend Power changed from 8 to 11. Removed the ability.
- Gwent Update: Aug 29, 2017 Patch: Morvudd is an equivalent of old Fiend (except its ability rounds up). Fiend Power changed from 5 to 8. Ability rework; Deploy: If you have any Relicts in your Hand, Strengthen self by 3. Fiend became a Bronze card. Now Agile (was Melee).
- Gwent Update: May 24, 2017 Patch: Now Silver and Epic (was Bronze and Common). Fiend Power changed from 8 to 5. Added an ability; Deploy: Toggle a Unit’s Lock. If it’s an Enemy, Damage it by half its Power (rounding down and ignoring Armor). Added "Relict" Tag.