Number C104: Umbral Horror Masquerade

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4 Level 5 monsters When this card is Special Summoned: You can target 1 Spell/Trap Card on the field; destroy that target. If this card has "Number 104: Masquerade" as an Xyz material, it gains this effect. ● Once per turn, during either player's turn, when a monster effect is activated on your opponent's side of the field: You can detach 1 Xyz Material from this card; negate the activation, then you can send 1 random card from your opponent's hand to the Graveyard, and if you do, halve your opponent's Life Points.