Blitz Mechanic, Schtart

[ACT](RC):If your opponent's vanguard is grade 3 or greater, [COST][Counter-Blast 1 & put a "Heavy Strike Cannon Fortress, Freischutz" from order zone into drop & retire this unit], choose up to one "Mobile Fortress of Obliteration, Freischutz Maximum" from your hand, and put it into your order zone.