F.A. Dark Dragster

Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by having a Level 7 or higher "F.A." monster on the field, but no "F.A. Dark Dragster" in your Monster Zone. Gains ATK equal to its Level x 300. Each time a "F.A." Spell/Trap Card or effect is activated: You can increase this card's Level by 1. Once per turn: You can target 1 card on the field; reduce this card's Level by 3, and if you do, destroy that target.

Machine DARK Effect Monster 7 effect