Tengu format ruling
Doomsday Horror
Card effect (current official text)This card's ATK and DEF are equal to the number of banished DARK monsters x 300. If this card is destroyed and sent to the Graveyard: Return all banished DARK monsters to the Graveyards.
Rulings
- Doomsday Horror's effects include your opponent's removed from play DARK monsters.
- The values determined for Doomsday Horror's first effect are not treated as its original ATK or DEF.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.