When you cast a spell with the MTG Cascade keyword, you exile cards from the top of your library until you hit a spell with a lower mana value
Spell Pierce hits cards of any mana value and Flusterstorm is the best way to win a big stack battle thanks to storm, but Minor Misstep has some upsides too: it's a hard counter, so unlike Spell Pierce you don't have to worry about your opponent paying for it in the late game and resolving their spell and it can hit creatures along with spells, which is huge in a world where Ragavan, Nimble Pilferer is in one-third of decks
deck and set it as active, and add up to 4 additional DON
a PSA 10 gold has upside if the SIR keeps rising
In Premodern, its kind of agreed on, I think, that the best white and black cards are Swords to Plowshares and Cabal Therapy
Shalai, Voice of Plenty ( Dominaria) Shalai is an excellent option for Commander, both to lead a deck and within the 99