Jaden and Aster vs Serena and Serena: A Yu-Gi-Oh Tag Duel

Mirror mirror on the wall...which HERO subtype's fandom will be the first to fall.

Elemental HERO Dark Neos
Effect:
"Elemental Hero Neos" + "Neo-Spacian Dark Panther"
This card can only be Special Summoned from your Fusion Deck by returning the above cards you control to your Deck. (You do not use "Polymerization".) If this card is not already targeting a monster with its effect, you can target 1 face-up Effect Monster on the field. While you control this face-up card, that target's effect on the field is negated. During the End Phase, return this card to the Fusion Deck.

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