Effect
3 Level 4 monsters Once per turn: You can detach 1 Xyz Material from this card; this card gains 300 ATK for each Xyz Material attached to a monster on the field.
Regarding the effect: "Once per turn, you can detach 1 Xyz Material from this card; this card gains 300 ATK for each Xyz Material on the field."
This is an Ignition Effect that can be activated in the Monster Zone.
When activating this effect, you detach 1 Xyz Material from this card as a cost.
At the time of resolution, you count the number of Xyz Materials on the field and this card gains ATK equal to that number × 300.
Even if the number of Xyz Materials on the field changes after this effect has been applied, the ATK value gained by this effect does not change.
If this card, to which this effect was applied, is no longer face-up in the Monster Zone, or if its effects are negated, the application of the effect "this card gains 300 ATK for each Xyz Material on the field" ceases.
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