Tomonoshin will be unrestricted, and Obstruct put to 1! Check out the details on the official site.
■ You may only cast this card if you have 5 life or less. ■ Discard your entire hand, then draw three cards! You may only cast "Dragonic Grimoire" once per turn. (You can cast this card even if you do not have any cards in hand!)
Within the long histories lies the answer.