REDU format ruling
Ritual Buster

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)Activate only when a Ritual Monster is Ritual Summoned. Your opponent cannot activate any Spell or Trap Cards or use their effects until your next Standby Phase.
Rulings
- Effects of Continuous Spell and Trap Cards that do not use the Chain remain active. For example, "Gravity Bind" or "Burden of the Mighty" will continue to apply their effects even if "Ritual Buster" is being applied as well.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.