Cannot be Normal Summoned/Set. Must be Special Summoned by "Horus the Black Flame Dragon LV6", and cannot be Special Summoned by other ways. During either player's turn, when a Spell Card is activated: You can negate the activation, and if you do, destroy it. You must control this face-up card to activate and to resolve this effect.
Once per turn, during your next Standby Phase after this card was destroyed by a card effect and sent to the GY: Special Summon this card from the GY. If you do: Destroy all Spells and Traps on the field.
Unaffected by your opponent's Spell effects. During your next Standby Phase after this card inflicts battle damage to your opponent by a direct attack: You can send this face-up card to the Graveyard; Special Summon 1 "Silent Swordsman LV7" from your hand or Deck.