渎神行径

Text:

战场上每有一个生物，渎神行径便减少来施放。
渎神行径对每个生物各造成13点伤害。

Rulings:

• 11/10/2020 To determine the total cost of a spell, start with the mana cost or alternative cost you’re paying, add any cost increases, then apply any cost reductions (such as that of Blasphemous Act). The converted mana cost of the spell is determined only by its mana cost, no matter what the total cost to cast the spell was.
• 11/10/2020 Blasphemous Act’s ability can’t reduce the total cost to cast the spell below <img src="/Handlers/Image.ashx?size=small&amp;name=R&amp;type=symbol" alt="Red" align="absbottom" />.
• 11/10/2020 The total cost to cast Blasphemous Act is locked in before you pay that cost. For example, if there are three creatures on the battlefield, including one you can sacrifice to add <img src="/Handlers/Image.ashx?size=small&amp;name=C&amp;type=symbol" alt="Colorless" align="absbottom" /> to your mana pool, the total cost of Blasphemous Act is <img src="/Handlers/Image.ashx?size=small&amp;name=5&amp;type=symbol" alt="5" align="absbottom" /><img src="/Handlers/Image.ashx?size=small&amp;name=R&amp;type=symbol" alt="Red" align="absbottom" />. Then you can sacrifice the creature when you activate mana abilities just before paying the cost.
• 11/10/2020 Although players may respond to Blasphemous Act once it’s been cast, once it’s announced, they can’t respond before the cost is calculated and paid.