Tomonoshin will be unrestricted, and Obstruct put to 1! Check out the details on the official site.
Jackarms, J. Arsenal
Size 1 Monster
Power: 4000 / Critical: 1 / Defense: 1000
■ If this card is in the soul of a monster with "Jackknife" in its card name, that card gets [Move] and [Penetrate]. ■ "Dragoners` Armory" When the attack of a monster with "Jackknife" in its card name and with this card in its soul is nullified, for this turn, that card gets [Double Attack]. "Dragoners` Armory" only activates once per turn. [Crossnize]