1 Tuner + 1 or more non-Tuner 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. Cannot be destroyed by card effects. You can target 1 "Blackwing" monster in your Graveyard; this card's Levelbecomes the same as that target's. You can only use this effect of "Assault Blackwing - Onimaru the Thunderbolt" once per Duel. If this card attacks， and was Synchro Summoned using only Synchro Monsters as Materials， it gains 3000 ATK during theDamage Step only.