Card Rulings:Mystical Knight of Jackal


 * In order to activate the effect of "Mystical Knight of Jackal", the monster that "Mystical Knight of Jackal" destroyed as a result of battle must be your opponent's own monster, not one of your monsters that your opponent controls.


 * "Mystical Knight of Jackal" sends a monster to the Graveyard as a result of battle, and THEN returns it to the top of the deck, so "Sangan" or "Witch of the Black Forest", etc., will activate their effects.


 * If "Banisher of the Light" is in play, the monster is removed from play and "Mystical Knight of Jackal" does not activate its effect so the monster does not return to the top of the Deck.


 * If "Mystical Knight of Jackal" attacks a face-down "Man-Eater Bug", and "Man-Eater Bug" destroys "Mystical Knight of Jackal", then the effect of "Mystical Knight of Jackal" is not applied.


 * "Mystical Knight of Jackal" does activate its effect even if "Necrovalley" is in play.


 * When "Mystical Knight of Jackal" attacks "Mystic Tomato", during the End Step both effects activate simultaneously once "Mystic Tomato" is sent to the Graveyard, so they form a chain. The turn player's effect is Step 1 of the chain, and the opponent's is Step 2; so "Mystic Tomato" resolves first, and a monster is Special Summoned and the Deck is shuffled. Then the turn player chooses whether to place "Mystic Tomato" on top of the owner's Deck with the effect of "Mystical Knight of Jackal".

Mentions in Other Rulings

 * Desertapir: If "Mystical Knight of Jackal" or "Ghost Knight of Jackal" attacks, and is flipped face-down by "Desertapir", the attacking monster is no longer face-up when "Desertapir" is sent to the Graveyard (which is when their effects activate), so their effects do not apply to "Desertapir".


 * Divine Wrath: You can activate "Divine Wrath" during the Damage Step because it is a Counter-Trap, so you may activate it to negate the effect of "D.D. Warrior Lady", "Reflect Bounder", "Injection Fairy Lily", "D.D. Crazy Beast", "Dark Paladin", or "Mystical Knight of Jackal".


 * Necrovalley: "Necrovalley" will NOT negate effects that do not target a card or cards in the Graveyard. So "Necrovalley" will NOT negate the effects of "Dark Necrofear" (when destroyed and sent to the Graveyard), "Revival Jam", "Winged Sage Falcos", "Twin-Headed Behemoth", "Mystical Knight of Jackal", and "Red-Moon Baby".


 * Outstanding Dog Marron: When "Mystical Knight of Jackal" attacks "Outstanding Dog Marron" and destroys it, the effects are simultaneous. So "Mystical Knight of Jackal's" effect is Step 1 of a chain and "Outstanding Dog Marron" is Step 2. "Outstanding Dog Marron" is returned to the Deck and "Mystical Knight of Jackal's" effect disappears.