Effect
During either player's Battle Step, when a Fusion Monster you control battles an opponent's Fusion Monster: Target both those Fusion Monsters; negate the attack, and if you do, each player takes damage equal to the combined ATK of both those Fusion Monsters.
You can activate this card at the Battle Step (including when an attack is declared) in which a Fusion Monster you control and a Fusion Monster your opponent controls battle.
This effect targets the 2 Fusion Monsters that are battling.
You cannot activate this card if a Fusion Monster you control attacks a face-down Defense Position Fusion Monster.
The effect of negating the attack and the effect of "both players take damage equal to the combined ATK of those 2 Fusion Monsters" are treated as occurring simultaneously. (Both players also take the damage simultaneously.)
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