Cardfight!! Vanguard - Dragonsoul Resonance - Solitary Path Knight, Armingal (R) DZ-BT10/055EN

[ACT](RC)[1/Turn]:If you have a grade 3 or greater vanguard with "Bastion" in its card name, [COST][Energy-Blast 3], until end of turn, when this unit would attack, this unit battles all of your opponent's units in a column. At the end of that turn, retire this unit.