Effect
4 Level 4 WATER monsters You can also Xyz Summon this card by using "Number 32: Shark Drake" you control as material. (Transfer its materials to this card.) If your LP are 1000 or less (Quick Effect): You can banish 1 monster from your GY and detach 1 material from this card, then target 1 face-up monster on the field; its ATK/DEF become 0 until the end of your turn.
Regarding "You can also Xyz Summon this card by placing it on top of a 'Number 32: Shark Drake' you control":
This is not treated as an effect. It is a method to Xyz Summon this card.
This method is also considered a proper Xyz Summon of this card.
【Regarding the ① effect】
This is a Quick Effect that can be activated in the Monster Zone.
It can be activated during the Damage Step, from the start of the Damage Step up to before damage calculation.
It can be activated multiple times on the same Chain.
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