Blasphemous Act

Public decks that run Blasphemous Act

• Ahoy Mateys - The Lost Caverns of Ixalan Commander, led by Admiral Brass, Unsinkable
• Animated Army - Bloomburrow Commander, led by Bello, Bard of the Brambles
• Built from Scratch - Commander 2014, led by Daretti, Scrap Savant
• Built from Scratch - Commander Anthology Volume II, led by Daretti, Scrap Savant
• Chaos Incarnate - Starter Commander Decks, led by Kardur, Doomscourge
• Dance of the Elements - Lorwyn Eclipsed Commander Deck, led by Ashling, the Limitless
• Doom Prevails - Marvel Super Heroes, led by Doctor Doom, King of Latveria
• Draconic Dissent - Commander Legends: Battle for Baldur's Gate, led by Firkraag, Cunning Instigator
• Endless Punishment - Duskmourn: House of Horror Commander, led by Valgavoth, Harrower of Souls
• Exquisite Invention - Commander 2018, led by Saheeli, the Gifted
• Goblin Storm Secret Lair Commander, led by Zada, Hedron Grinder
• Heads I Win, Tails You Lose - Secret Lair Drop, led by Zndrsplt, Eye of Wisdom
• Hosts of Mordor - Tales of Middle-earth Commander, led by Sauron, Lord of the Rings
• Living Energy - Aetherdrift Commander, led by Saheeli, Radiant Creator
• Masters of Evil - Doctor Who, led by Davros, Dalek Creator
• Mishra's Burnished Banner - The Brothers' War Commander, led by Mishra, Eminent One
• Planeswalker Party - Commander Masters, led by Commodore Guff
• Prismari Artistry - Secrets of Strixhaven, led by Rootha, Mastering the Moment
• Prismari Performance - Commander 2021, led by Zaffai, Thunder Conductor
• Reign of Dragons - Foundations Commander, led by Lathliss, Dragon Queen
• Riveteer Rampage - New Capenna Commander, led by Henzie "Toolbox" Torre
• Scrappy Survivors - Fallout, led by Dogmeat, Ever Loyal
• Stalwart Unity - Commander 2016, led by Kynaios and Tiro of Meletis
• Temur Roar - Tarkir: Dragonstorm Commander, led by Eshki, Temur's Roar

The first 24 of 28, by name.

Commanders that run Blasphemous Act most

Deck counts from EDHREC.

• Sauron, the Dark Lord: 25,042 decks
• Valgavoth, Harrower of Souls: 23,893 decks
• Bello, Bard of the Brambles: 22,752 decks
• Krenko, Mob Boss: 16,950 decks
• Ashling, the Limitless: 16,181 decks
• Deadpool, Trading Card: 15,503 decks
• Ureni of the Unwritten: 15,479 decks
• Nekusar, the Mindrazer: 14,486 decks

Often played with Blasphemous Act

Cards that show up in the same decks on EDHREC.

• Martyrdom
• Shaman en-Kor
• Light of Sanction
• Horde of Notions
• Saving Grace
• Spitemare
• Heroes in a Half Shell
• Vernal Sovereign
• Everything Pizza
• Scouring Swarm

Rulings

• 2020-11-10: 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 {C}, the total cost of Blasphemous Act is {5}{R}. Then you can sacrifice the creature when you activate mana abilities just before paying the cost.
• 2020-11-10: 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 mana value of the spell is determined only by its mana cost, no matter what the total cost to cast the spell was.
• 2020-11-10: 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.
• 2020-11-10: Blasphemous Act's ability can't reduce the total cost to cast the spell below {R}.