Goat format ruling
Dark Coffin
Card effect (current official text)When this face-down card is destroyed and sent to the Graveyard, your opponent selects and executes 1 of the following effects:
● Discard 1 random card in their hand.
● Select 1 monster on their side of the field and destroy it.
Rulings
- This card is only activated if sent from the field to the GY. There is no way to activate this card while it is Set on the field.
- Dark Coffin activates its effect even if it is destroyed on the same turn it was Set.
- If Banisher of the Light is in play, then Dark Coffin does not activate its effect when destroyed, because it is not sent to the GY.
- You cannot choose an effect you cannot fulfill, so if you have no cards in your hand, you cannot choose to discard for Dark Coffin.
- Dark Coffin activates its effect even if you destroy your own Dark Coffin.
- "Dark Coffin" does not need to have been Set a turn to trigger its effect if it is destroyed.
- The effect of "Dark Coffin" activates regardless of which player destroys "Dark Coffin" and sends it to the GY.
- If the opponent of the controller of "Dark Coffin" cannot fulfill one of the two conditions of "Dark Coffin," the other condition must be fulfilled.
- "Dark Coffin’s" effect is not negated by cards like "Jinzo" or "Royal Decree" since "Dark Coffin’s" effect activates in the GY."
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.