Tengu format ruling
Cold Wave
Card effect (current official text)This card can only be activated at the start of Main Phase 1. Until your next turn, you and your opponent cannot play or Set any Spell or Trap Cards.
Rulings
- While this effect is applying, effects of already face-up Spells/Traps also can’t be activated. This means that if this effect is applying, the effect of Royal Oppression also can’t be activated. (However, continuous Spell/Trap effects will still apply).
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.