REDU format ruling
The Beginning of the End

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)If you have 7 or more DARK monsters in your GY: Banish 5 DARK monsters from your GY; draw 3 cards.
Rulings
- Removing from play 5 DARK monsters from your GY is a cost to activate this card.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.