Tomonoshin will be unrestricted, and Obstruct put to 1! Check out the details on the official site.
Great Spell Circle of Reservoir
■ [Set] ■ When you cast a spell, put the top card of your deck into your gauge, for this turn, a card on your opponent's field gets power-2000, defense-2000, and critical-1! This ability only activates once per turn. ■ You may only [Set] one "Great Spell Circle of Reservoir" on your field.