1 Tuner + 1 or more non-Tuner Synchro Monsters
If this card is Synchro Summoned using a "Blackwing" monster as Material, it is treated as a Tuner monster while face-up on the field. This card gains 300 ATK for each "Blackwing" monster in your Graveyard. When this card is destroyed and sent to the Graveyard: You can target 1 Winged Beast-Type Synchro Monster in your Graveyard, except "Assault Blackwing - Chidori the Rain Sprinkling"; Special Summon it.