| Set: | Duskmourn: House of Horror Commander |
| Type: | Sorcery |
| Rarity: | Rare |
| Cost: | {8}{R} |
This spell costs {1} less to cast for each creature on the battlefield.
Blasphemous Act deals 13 damage to each creature. "Holy places are no longer sanctuary from death, and death is no longer sanctuary from anything."Thalia, Knight-Cathar
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![Canopy Vista (Surge Foil) [FINAL FANTASY Commander]](https://www.playminiature.com/wp-content/uploads/2026/06/1781270995/canopy-vista-surge-foil-final-fantasy-commander.webp)
![Foot Elite [Teenage Mutant Ninja Turtles]](https://www.playminiature.com/wp-content/uploads/2026/06/1781270995/foot-elite-teenage-mutant-ninja-turtles.webp)
![Realm of Koh [Avatar: The Last Airbender]](https://www.playminiature.com/wp-content/uploads/2026/06/1781271029/realm-of-koh-avatar-the-last-airbender.webp){kind=avatar}
![Forest (0296) [Avatar: The Last Airbender]](https://www.playminiature.com/wp-content/uploads/2026/06/1781270995/forest-0296-avatar-the-last-airbender.webp){kind=avatar}
![Divergent Equation (SOS-043) [Secrets of Strixhaven] Foil](https://www.playminiature.com/wp-content/uploads/2026/06/1781270995/divergent-equation-sos-043-secrets-of-strixhaven-foil.webp)
![Professor Dellian Fel (SOS-283) [Secrets of Strixhaven] Foil](https://www.playminiature.com/wp-content/uploads/2026/06/1781271004/professor-dellian-fel-sos-283-secrets-of-strixhaven-foil.webp)
![Lightning Greaves [Secrets of Strixhaven Commander]](https://www.playminiature.com/wp-content/uploads/2026/06/1781271029/lightning-greaves-secrets-of-strixhaven-commander.webp)