Edison format ruling
Horus' Servant
Card effect (current official text)Your opponent cannot target face-up "Horus the Black Flame Dragon" monsters with Spells, Traps, or card effects.
Rulings
- Horus’ Servant has an effect just like Lord of D., but only applicable to Horus the Black Flame Dragon. Horus’ Servant will not negate a card effect. All it does is prevent Horus the Black Flame Dragon from being selected as a target. If your opponent selects Horus the Black Flame Dragon as a target (with Ring of Destruction, for example), and you chain Call of the Haunted to Special Summon Horus’ Servant, then Horus the Black Flame Dragon will still be destroyed by Ring of Destruction because Horus’ Servant is being Special Summoned AFTER Horus the Black Flame Dragon was selected. The fact that Ring of Destruction has not yet resolved does not matter; Horus the Black Flame Dragon was selected at activation of Ring of Destruction, and Horus’ Servant is Special Summoned too late to prevent this.
- Your opponent cannot activate a Spell Card, Trap Card, or Monster Effect that would select Horus the Black Flame Dragon as a target while Horus’ Servant is in play. Horus’ Servant does not cause the effect to be negated; he prevents the activation of the effect in the first place.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.