Effect
You cannot activate, Set, or use the effects of any Spell/Trap Cards this turn.
This effect does not target.
This effect cannot be activated during the Damage Step.
The effect "You cannot activate or Set Spell/Trap Cards, or use their effects" only applies to the player who activated "Cold Wave." (The opponent can still activate Spell/Trap Cards, etc., as normal.)
The effect "You cannot activate or Set Spell/Trap Cards, or use their effects" is applied when the effect of "Cold Wave" resolves; therefore, you can chain the activation of other Spell/Trap card effects to the activation of "Cold Wave."
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