Tomonoshin will be unrestricted, and Obstruct put to 1! Check out the details on the official site.
Underhanded Means, Piercing Pins
■ [Counter] For this turn, monster on your opponent's field gets power-4000, defense-4000, critical-1! ■ When this face down card is put from the soul of an «Oni Assassin» on the field into the drop zone, for this turn, a monster on your opponent's field gets power-10000, defense-10000!