Curse of Fiend

Edisonformat.net (Revised, Post-UTW Rulings)

Source: https://edisonformat.net/card?name=Curse%20of%20Fiend

Edison-Accurate PSCT

No Edison-Accurate PSCT available for this card.

Card Rulings

Changes the battle positions of all Attack Position monsters on the field to Defense Position and vice-versa. These positions can’t be changed during the turn this card is activated except by the effect of a Spell, Trap or Effect Monster Card. You can activate this card only during your Standby Phase.

  • This card must be Set in order to be activated during your Standby Phase. During your Standby Phase you flip up the face-down Curse of Fiend to activate its effect.

  • Face-down monsters changed to Attack Position will have their Flip Effects (and when this card is flipped face-up Trigger Effects) activated. This is NOT a Flip Summon, and won’t cause Swarm of Scarabs to activate its Trigger Effect.

  • VS. Final Attack Order: While Final Attack Orders is active, you can change the Battle Positions of monsters with Curse of Fiend or Little-Winguard, but the Battle Positions are immediately changed back to Attack Position by Final Attack Orders.

  • VS. Destiny Hero Diamond Dude: You can’t activate the effect of Curse of Fiend, because it can only be activated during the Standby Phase.

Edisonformat.com (Historical, Pre-UTW Rulings)

Source: https://www.edisonformat.com/rulings

Card Text

Changes the battle positions of all Attack Position monsters on the field to Defense Position and vice-versa. These positions cannot be changed during the turn this card is activated except by the effect of a Spell, Trap or Effect Monster Card. You can activate this card only during your Standby Phase.

Card Rulings

  • This card must be Set in order to be activated during your Standby Phase. During your Standby Phase you flip up the face-down “Curse of Fiend” to activate its effect.

  • Face-down monsters changed to Attack Position will have their Flip Effects (and “when this card is flipped face-up” Trigger Effects) activated [REF]. This is NOT a Flip Summon, and will not cause “Swarm of Scarabs” to activate its Trigger Effect.

  • VS. “Final Attack Order”: While “Final Attack Orders” is active, you can change the Battle Positions of monsters with “Curse of Fiend” or “Little-Winguard”, but the Battle Positions are immediately changed back to Attack Position by “Final Attack Orders”.

  • VS. “Destiny Hero Diamond Dude”: You cannot activate the effect of “Curse of Fiend”, because it can only be activated during the Standby Phase.