Tomonoshin will be unrestricted, and Obstruct put to 1! Check out the details on the official site.
■ You may only cast this card during an attack on your opponent's turn. ■ [Cast Cost] [Pay 1 gauge] ■ [Counter] Nullify the attack. Then, if an item on your field has a «Plague» spell in its soul, for this turn, a card on your opponent's field gets critical-1!