Effect
If you control no monsters, you can Normal Summon this card without Tributing. Once per turn, during your opponent's Standby Phase: This card's ATK becomes double its current ATK until the end of this turn.
The effect "This card's ATK becomes double until the End Phase" is a Trigger Effect that must be activated during the opponent's Standby Phase.
For the effect "Once per turn, during the opponent's Standby Phase: This card's ATK becomes double until the End Phase," "End Phase" is read as "end of the turn." (Applied from July 10, 2014)
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