Effect
Halve the ATK of all face-up monsters currently on the field, until the End Phase.
This effect does not target.
If activating during the Damage Step, it can be activated from the start of the Damage Step up to before damage calculation.
The effect of "Reverse Glasses" is only applied to monsters that are face-up on the field at the time the effect resolves. (The effect is not applied to monsters that appear on the field after the effect has resolved.)
You cannot activate "Reverse Glasses" if there are no face-up monsters on the field.
"End Phase" in "halve the ATK of all face-up monsters on the field until the End Phase" is read as "end of the turn." (Applied from July 10, 2014.)
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