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You don't have to worry about stepping on Furthermore, since it's an activation effect, you can also use it with cards that copy monster effects like Funcas

While Goring Ceratops will have to attack to enable this effect, and it only last until the end of turn, its nevertheless utterly devastating

This is the most fair use for a Brainstorm, but it can still be quite potent in these decks because the cards are usually split between anti-aggro and anti-control. Being able to get rid of a Baffling End or a Wrath of God against another control or combo deck

While you do have some ways of interacting with their primary game plan, you will need to rely on excessive matchup knowledge and a little bit of luck