Greedy Venom Fusion Dragon (Secret Rare)

1 "Predaplant" monster + 1 DARK monster whose original Level is 8 or higher Must first be Fusion Summoned. Once per turn: You can target 1 face-up monster on the field, until the end of this turn, change that target's ATK to 0, also that target has its effects negated. If this card is destroyed and sent to the Graveyard: Destroy as many monsters on the field as possible, then you can banish 1 Level 8 or higher DARK monster from your Graveyard and Special Summon this card from the Graveyard.