|Card type||Trap Card|
LoreIf a monster you control with a level is destroyed by battle or effect and sent to the GY, you can increase the numbers of Sonar Counters from 1 face-up Sonar Monster in your Extra Deck by the half of the level of that monster (rounded down, but if the destroyed monster is level 1, you add 1 Sonar Counter). If 2 or more monsters were destroyed at the same time, you target 1 of them. You can only try to activate 1 Amplified Wave per turn.
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