Effect
Once per turn: You can make this card's ATK become double its original ATK, until your next Standby Phase. This card cannot attack the turn you activate this effect.
The monster effect of "Photon Chargeman" is an Ignition Effect.
It does not target.
The ATK doubled by its own monster effect is not treated as its original ATK.
If "Photon Chargeman" itself has not attacked, you can also activate its monster effect during Main Phase 2 of that turn.
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