Assuming you have at least three mana, and there are enough creatures in play, you can play Demonic Tutor, put Blasphemous Act into your hand and then cast it, all in the same turn
Here are some cards that felt immediately wrong to our team
Veloci-Ramp-Tor LIC Commander Precon deck Veloci-Ramp-Tor, as the name suggests, is a Dinosaur typal commander deck
You can soft-lock players with cards like Meren of Clan Nel Toth, Abiding Grace, and Tortured Existence to prevent anybody else from having a meaningful combat step
While Everyones Invited, the Secret Lair Commander deck, is technically a precon released this year, it's so far beyond the normal quality and bounds of mass-market releases that Im choosing to ignore it for this type of article