REDU format ruling
Invader of Darkness

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)Your opponent cannot activate Quick-Play Spell Cards.
Rulings
(1) While this card is face-up on the field, your opponent cannot activate Quick-Play Spell Cards.
- The (1) Continuous Effect applies while this card is face-upon the field.
- Your opponent cannot activate (play face-up) Quick-Play Spells.
- The effects of Quick-Play Spell Cards that were activated earlier in the Chain are not negated.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.