Effect
All "Gagaga" monsters you currently control gain 500 ATK for each "Gagaga" monster you currently control, until your next Standby Phase. You can only activate 1 "Gagagatag" per turn.
This effect does not target.
At the time the effect resolves, it is applied only to "Gagaga" monsters you control in face-up Attack Position, and their ATK is increased.
You cannot activate "Gagaga Tag" if you do not control any face-up "Gagaga" monsters in your Monster Zone.
Even if the number of face-up "Gagaga" monsters you control changes after the effect of "Gagaga Tag" has been applied, the ATK increase already applied does not change.
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