Goat format ruling
Swords of Revealing Light

Card effect (current official text)After this card's activation, it remains on the field, but you must destroy it during the End Phase of your opponent's 3rd turn. When this card is activated: If your opponent controls a face-down monster, flip all monsters they control face-up. While this card is face-up on the field, your opponent's monsters cannot declare an attack.
Rulings
- This card remains on the field and is applying until the end of your opponent’s third turn. This card must be on the field for its effect to be applying.
- If this card is destroyed or removed from the field by the effect of another card, such as Heavy Storm or Giant Trunade, the opponent may then attack.
- If multiple Flip Effect monsters are flipped face-up by the effect of Swords of Revealing Light the effects are activated simultaneously and follow the rules for simultaneous effects found in the Advanced Gameplay section of this website.
- If Imperial Order is applying on the field you can still activate Swords of Revealing Light and it will maintain its turn count, but it will NOT flip monsters face-up or prevent the opponent from attacking. If Imperial Order is destroyed after Swords of Revealing Light has been on the field for two of your opponent’s turns, it will only prevent your opponent from attacking for one turn and then be destroyed.If "Swords of Revealing Light" is destroyed but not negated in a chain with its activation, "Swords of Revealing Light" will cause all monsters on the opponent’s field to flip face up before being destroyed.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.