User Summary The Master Blaster Promo Card is a weapon card that attaches to the Doom Buggy. When bodged it requires one other player (of the owner's choice) to discard a card. If a Doom Buggy with a Master Blaster attached wins a rush, then the owner may wreck two pieces of equipment belonging to any other player(s) in the game. When played during a rush the card can defend any color, but then attacks any color of the player's choice.