2 "Masked HERO" monsters

(This card is always treated as an "Elemental HERO" card.)

Must be Fusion Summoned and cannot be Special Summoned by other ways. While face-up on the field, this card is also LIGHT-Attribute. Once per turn, during either player's turn: You can target 1 face-up card on the field; negate that target's effects until the end of this turn.