Tengu format ruling
Ghost Knight of Jackal
Card effect (current official text)You can Special Summon an opponent's monster that is destroyed and sent to the Graveyard by this card as a result of battle to your side of the field in face-up Defense Position.
Rulings
- Ghost Knight of Jackal's effect activates when you send a monster to the GY.
- If your Ghost Knight of Jackal attacks a face-down Jowls of Dark Demise, your opponent takes control of Ghost Knight of Jackal at the time that Jowls of Dark Demise is sent to the GY, and Ghost Knight of Jackal's effect disappears.
- If Ghost Knight of Jackal is removed from the field or flipped face-down before the monster it destroyed is sent to the GY, then Ghost Knight of Jackal's effect is not applied.
- If Final Attack Orders is active, you can Special Summon a monster destroyed by Ghost Knight of Jackal in Defense Position, but it is changed to Attack Position immediately.
- If your Ghost Knight of Jackal destroys a monster you own that is on your opponent's side of the field, the effect of Ghost Knight of Jackal is not applied because it only applies to an opponent's monster that is destroyed.
- If Ghost Knight of Jackal attacks Ghost Knight of Jackal, neither effect is applied.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.