Tomonoshin will be unrestricted, and Obstruct put to 1! Check out the details on the official site.
■ [Cast Cost] [Destroy any number of «Dimension Dragon» monsters on your field] ■ You gain 1 life and draw a card for each card destroyed by this card's [Cast Cost]. You may only cast "D. Scapegoat" once per turn.
It's fine! As long as you benefit from them, you should make use of all that you can.