[ACD] Frightfur March

When exactly 1 "Frightfur" monster you control is targeted by an opponent's monster effect: Target that "Frightfur" monster; negate that effect, then send 1 "Frightfur" monster with same Level as that target from your Extra Deck to the Graveyard, and if you do, Special Summon 1 "Frightfur" monster from your Extra Deck that lists that target as a Fusion Material. (This Special Summon is treated as a Fusion Summon.)