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Magus of the Wheel is a nice copy target since you can immediately sacrifice it to draw a fresh new hand of seven cards plus one from the copy dying, which is a great way to get ahead on cards with Jaxis

Still meh

If you want to counter Cascade itself, you'll need a card that can counter a triggered ability (such as Stifle or Trickbind)

From then on, players cursed whenever they opened one

Rowan's Grim Search #104 Wilds of Eldraine Change Version Rowan's Grim Search Instant Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) If this spell was bargained, look at the top four cards of your library, then put up to two of them back on top of your library in any order and the rest into your graveyard