yugioh destroy face down cards Nobleman of Extermination [DTP1-EN012] Common You can Special Summon this card by Tributing 1 Oceans Keeper Falling Down - Dark Crisis

From these, it can be assumed that Imposter Professor Oak does have some mechanical knowledge of his own, since he is stated to be an inventor

The main down side is that it is pretty weak against some of the other combo decks (like Storm) and hyper-aggressive decks

9 Command Tower (Borderless, Surge Foil) Enjoy The View From A Vantage Point Standard Card Price: $1.00 Or Less Borderless, Suge Foil Price: $49.00 And Up Not only is this a pretty powerful card to play in game, but the artwork on this Command Tower card is very popular among Fallout fans

If you call it right, the attacking monster's ATK becomes 0 until the end of the Battle Phase